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Finding the Fourth Proportional to 10,885.68, 15,024.24 and 7,062.12

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Solution

The fourth proportional to 10,885.68, 15,024.24 and 7,062.12 is: 9,747.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.68 : 15,024.24 = 7,062.12 : x
  2. Step 2: Convert to fraction form
    10,885.68/15,024.24 = 7,062.12/x
  3. Step 3: Cross multiply
    10,885.68x = 15,024.24 × 7,062.12
  4. Step 4: Simplify right side
    10,885.68x = 106,102,985.79
  5. Step 5: Solve for x
    x = 106,102,985.79/10,885.68
  6. Step 6: Final answer
    x = 9,747.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.