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Finding the Fourth Proportional to 8,663,636.53, 12,976,770.61 and 8,154,295.16

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Solution

The fourth proportional to 8,663,636.53, 12,976,770.61 and 8,154,295.16 is: 12,213,857.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663,636.53 : 12,976,770.61 = 8,154,295.16 : x
  2. Step 2: Convert to fraction form
    8,663,636.53/12,976,770.61 = 8,154,295.16/x
  3. Step 3: Cross multiply
    8,663,636.53x = 12,976,770.61 × 8,154,295.16
  4. Step 4: Simplify right side
    8,663,636.53x = 105,816,417,736,781.78
  5. Step 5: Solve for x
    x = 105,816,417,736,781.78/8,663,636.53
  6. Step 6: Final answer
    x = 12,213,857.01

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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.