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Finding the Fourth Proportional to 9,074,805.10, 13,612,207.65 and 7,019,899.90

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Solution

The fourth proportional to 9,074,805.10, 13,612,207.65 and 7,019,899.90 is: 10,529,849.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,074,805.10 : 13,612,207.65 = 7,019,899.90 : x
  2. Step 2: Convert to fraction form
    9,074,805.10/13,612,207.65 = 7,019,899.90/x
  3. Step 3: Cross multiply
    9,074,805.10x = 13,612,207.65 × 7,019,899.90
  4. Step 4: Simplify right side
    9,074,805.10x = 95,556,335,121,014.25
  5. Step 5: Solve for x
    x = 95,556,335,121,014.25/9,074,805.10
  6. Step 6: Final answer
    x = 10,529,849.85

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.