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Finding the Fourth Proportional to 11,068.80, 16,592.40 and 9,902.40

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Solution

The fourth proportional to 11,068.80, 16,592.40 and 9,902.40 is: 14,843.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,068.80 : 16,592.40 = 9,902.40 : x
  2. Step 2: Convert to fraction form
    11,068.80/16,592.40 = 9,902.40/x
  3. Step 3: Cross multiply
    11,068.80x = 16,592.40 × 9,902.40
  4. Step 4: Simplify right side
    11,068.80x = 164,304,581.76
  5. Step 5: Solve for x
    x = 164,304,581.76/11,068.80
  6. Step 6: Final answer
    x = 14,843.94

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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.