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Finding the Fourth Proportional to 28,971,877.60, 43,394,830.80 and 17,592,479.20

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Solution

The fourth proportional to 28,971,877.60, 43,394,830.80 and 17,592,479.20 is: 26,350,472.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971,877.60 : 43,394,830.80 = 17,592,479.20 : x
  2. Step 2: Convert to fraction form
    28,971,877.60/43,394,830.80 = 17,592,479.20/x
  3. Step 3: Cross multiply
    28,971,877.60x = 43,394,830.80 × 17,592,479.20
  4. Step 4: Simplify right side
    28,971,877.60x = 763,422,658,236,519.25
  5. Step 5: Solve for x
    x = 763,422,658,236,519.25/28,971,877.60
  6. Step 6: Final answer
    x = 26,350,472.30

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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.