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Finding the Fourth Proportional to 10,572.24, 15,868.08 and 9,937.20

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Solution

The fourth proportional to 10,572.24, 15,868.08 and 9,937.20 is: 14,914.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,572.24 : 15,868.08 = 9,937.20 : x
  2. Step 2: Convert to fraction form
    10,572.24/15,868.08 = 9,937.20/x
  3. Step 3: Cross multiply
    10,572.24x = 15,868.08 × 9,937.20
  4. Step 4: Simplify right side
    10,572.24x = 157,684,284.58
  5. Step 5: Solve for x
    x = 157,684,284.58/10,572.24
  6. Step 6: Final answer
    x = 14,914.94

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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.