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Finding the Fourth Proportional to 25,487,985.60, 38,231,978.40 and 22,701,067.20

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Solution

The fourth proportional to 25,487,985.60, 38,231,978.40 and 22,701,067.20 is: 34,051,600.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,487,985.60 : 38,231,978.40 = 22,701,067.20 : x
  2. Step 2: Convert to fraction form
    25,487,985.60/38,231,978.40 = 22,701,067.20/x
  3. Step 3: Cross multiply
    25,487,985.60x = 38,231,978.40 × 22,701,067.20
  4. Step 4: Simplify right side
    25,487,985.60x = 867,906,710,847,348.38
  5. Step 5: Solve for x
    x = 867,906,710,847,348.38/25,487,985.60
  6. Step 6: Final answer
    x = 34,051,600.80

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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.