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Finding the Fourth Proportional to 9,274.92, 13,899.80 and 5,108.72

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Solution

The fourth proportional to 9,274.92, 13,899.80 and 5,108.72 is: 7,656.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,274.92 : 13,899.80 = 5,108.72 : x
  2. Step 2: Convert to fraction form
    9,274.92/13,899.80 = 5,108.72/x
  3. Step 3: Cross multiply
    9,274.92x = 13,899.80 × 5,108.72
  4. Step 4: Simplify right side
    9,274.92x = 71,010,186.26
  5. Step 5: Solve for x
    x = 71,010,186.26/9,274.92
  6. Step 6: Final answer
    x = 7,656.15

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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.