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Finding the Fourth Proportional to 14,501.10, 21,751.65 and 7,923.90

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Solution

The fourth proportional to 14,501.10, 21,751.65 and 7,923.90 is: 11,885.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,501.10 : 21,751.65 = 7,923.90 : x
  2. Step 2: Convert to fraction form
    14,501.10/21,751.65 = 7,923.90/x
  3. Step 3: Cross multiply
    14,501.10x = 21,751.65 × 7,923.90
  4. Step 4: Simplify right side
    14,501.10x = 172,357,899.44
  5. Step 5: Solve for x
    x = 172,357,899.44/14,501.10
  6. Step 6: Final answer
    x = 11,885.85

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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.