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Finding the Fourth Proportional to 10,655.92, 14,711.48 and 9,473.72

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Solution

The fourth proportional to 10,655.92, 14,711.48 and 9,473.72 is: 13,079.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,655.92 : 14,711.48 = 9,473.72 : x
  2. Step 2: Convert to fraction form
    10,655.92/14,711.48 = 9,473.72/x
  3. Step 3: Cross multiply
    10,655.92x = 14,711.48 × 9,473.72
  4. Step 4: Simplify right side
    10,655.92x = 139,372,431.72
  5. Step 5: Solve for x
    x = 139,372,431.72/10,655.92
  6. Step 6: Final answer
    x = 13,079.35

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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.