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Finding the Fourth Proportional to 63,762,976.74, 87,970,886.96 and 38,653,136.88

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Solution

The fourth proportional to 63,762,976.74, 87,970,886.96 and 38,653,136.88 is: 53,327,979.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,762,976.74 : 87,970,886.96 = 38,653,136.88 : x
  2. Step 2: Convert to fraction form
    63,762,976.74/87,970,886.96 = 38,653,136.88/x
  3. Step 3: Cross multiply
    63,762,976.74x = 87,970,886.96 × 38,653,136.88
  4. Step 4: Simplify right side
    63,762,976.74x = 3,400,350,735,119,887
  5. Step 5: Solve for x
    x = 3,400,350,735,119,887/63,762,976.74
  6. Step 6: Final answer
    x = 53,327,979.79

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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.