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Finding the Fourth Proportional to 28,092,926.34, 42,142,762.92 and 9,893,357.48

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Solution

The fourth proportional to 28,092,926.34, 42,142,762.92 and 9,893,357.48 is: 14,841,224.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,092,926.34 : 42,142,762.92 = 9,893,357.48 : x
  2. Step 2: Convert to fraction form
    28,092,926.34/42,142,762.92 = 9,893,357.48/x
  3. Step 3: Cross multiply
    28,092,926.34x = 42,142,762.92 × 9,893,357.48
  4. Step 4: Simplify right side
    28,092,926.34x = 416,933,418,762,448.69
  5. Step 5: Solve for x
    x = 416,933,418,762,448.69/28,092,926.34
  6. Step 6: Final answer
    x = 14,841,224.22

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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.