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Finding the Fourth Proportional to 15,791,410.80, 23,651,686.80 and 15,437,116.80

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Solution

The fourth proportional to 15,791,410.80, 23,651,686.80 and 15,437,116.80 is: 23,121,040.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,791,410.80 : 23,651,686.80 = 15,437,116.80 : x
  2. Step 2: Convert to fraction form
    15,791,410.80/23,651,686.80 = 15,437,116.80/x
  3. Step 3: Cross multiply
    15,791,410.80x = 23,651,686.80 × 15,437,116.80
  4. Step 4: Simplify right side
    15,791,410.80x = 365,113,851,648,618.25
  5. Step 5: Solve for x
    x = 365,113,851,648,618.25/15,791,410.80
  6. Step 6: Final answer
    x = 23,121,040.69

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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.