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Finding the Fourth Proportional to 19,957,187.93, 29,935,781.89 and 19,957,187.93

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Solution

The fourth proportional to 19,957,187.93, 29,935,781.89 and 19,957,187.93 is: 29,935,781.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,957,187.93 : 29,935,781.89 = 19,957,187.93 : x
  2. Step 2: Convert to fraction form
    19,957,187.93/29,935,781.89 = 19,957,187.93/x
  3. Step 3: Cross multiply
    19,957,187.93x = 29,935,781.89 × 19,957,187.93
  4. Step 4: Simplify right side
    19,957,187.93x = 597,434,024,810,648.75
  5. Step 5: Solve for x
    x = 597,434,024,810,648.75/19,957,187.93
  6. Step 6: Final answer
    x = 29,935,781.89

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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.