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Finding the Fourth Proportional to 25,841,985.60, 38,762,978.40 and 11,466,506.55

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Solution

The fourth proportional to 25,841,985.60, 38,762,978.40 and 11,466,506.55 is: 17,199,759.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,841,985.60 : 38,762,978.40 = 11,466,506.55 : x
  2. Step 2: Convert to fraction form
    25,841,985.60/38,762,978.40 = 11,466,506.55/x
  3. Step 3: Cross multiply
    25,841,985.60x = 38,762,978.40 × 11,466,506.55
  4. Step 4: Simplify right side
    25,841,985.60x = 444,475,945,721,108.56
  5. Step 5: Solve for x
    x = 444,475,945,721,108.56/25,841,985.60
  6. Step 6: Final answer
    x = 17,199,759.83

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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.