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Finding the Fourth Proportional to 10,892.13, 15,051.57 and 8,901.96

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Solution

The fourth proportional to 10,892.13, 15,051.57 and 8,901.96 is: 12,301.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,892.13 : 15,051.57 = 8,901.96 : x
  2. Step 2: Convert to fraction form
    10,892.13/15,051.57 = 8,901.96/x
  3. Step 3: Cross multiply
    10,892.13x = 15,051.57 × 8,901.96
  4. Step 4: Simplify right side
    10,892.13x = 133,988,474.08
  5. Step 5: Solve for x
    x = 133,988,474.08/10,892.13
  6. Step 6: Final answer
    x = 12,301.40

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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.