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Finding the Fourth Proportional to 8,869,663.80, 13,304,495.70 and 6,956,476.20

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Solution

The fourth proportional to 8,869,663.80, 13,304,495.70 and 6,956,476.20 is: 10,434,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869,663.80 : 13,304,495.70 = 6,956,476.20 : x
  2. Step 2: Convert to fraction form
    8,869,663.80/13,304,495.70 = 6,956,476.20/x
  3. Step 3: Cross multiply
    8,869,663.80x = 13,304,495.70 × 6,956,476.20
  4. Step 4: Simplify right side
    8,869,663.80x = 92,552,407,690,052.34
  5. Step 5: Solve for x
    x = 92,552,407,690,052.34/8,869,663.80
  6. Step 6: Final answer
    x = 10,434,714.30

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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.