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Finding the Fourth Proportional to 15,987,766.80, 22,433,262 and 15,987,766.80

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Solution

The fourth proportional to 15,987,766.80, 22,433,262 and 15,987,766.80 is: 22,433,262

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987,766.80 : 22,433,262 = 15,987,766.80 : x
  2. Step 2: Convert to fraction form
    15,987,766.80/22,433,262 = 15,987,766.80/x
  3. Step 3: Cross multiply
    15,987,766.80x = 22,433,262 × 15,987,766.80
  4. Step 4: Simplify right side
    15,987,766.80x = 358,657,761,419,301.62
  5. Step 5: Solve for x
    x = 358,657,761,419,301.62/15,987,766.80
  6. Step 6: Final answer
    x = 22,433,262

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.