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Finding the Fourth Proportional to 14,791,934.16, 20,412,477.48 and 8,265,617.16

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Solution

The fourth proportional to 14,791,934.16, 20,412,477.48 and 8,265,617.16 is: 11,406,332.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,791,934.16 : 20,412,477.48 = 8,265,617.16 : x
  2. Step 2: Convert to fraction form
    14,791,934.16/20,412,477.48 = 8,265,617.16/x
  3. Step 3: Cross multiply
    14,791,934.16x = 20,412,477.48 × 8,265,617.16
  4. Step 4: Simplify right side
    14,791,934.16x = 168,721,724,136,801.56
  5. Step 5: Solve for x
    x = 168,721,724,136,801.56/14,791,934.16
  6. Step 6: Final answer
    x = 11,406,332.82

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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.