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Finding the Fourth Proportional to 10,892.70, 14,995.08 and 9,773.28

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Solution

The fourth proportional to 10,892.70, 14,995.08 and 9,773.28 is: 13,454.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,892.70 : 14,995.08 = 9,773.28 : x
  2. Step 2: Convert to fraction form
    10,892.70/14,995.08 = 9,773.28/x
  3. Step 3: Cross multiply
    10,892.70x = 14,995.08 × 9,773.28
  4. Step 4: Simplify right side
    10,892.70x = 146,551,115.46
  5. Step 5: Solve for x
    x = 146,551,115.46/10,892.70
  6. Step 6: Final answer
    x = 13,454.07

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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.