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Finding the Fourth Proportional to 5,875.60, 8,789.10 and 5,000.80

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Solution

The fourth proportional to 5,875.60, 8,789.10 and 5,000.80 is: 7,480.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,875.60 : 8,789.10 = 5,000.80 : x
  2. Step 2: Convert to fraction form
    5,875.60/8,789.10 = 5,000.80/x
  3. Step 3: Cross multiply
    5,875.60x = 8,789.10 × 5,000.80
  4. Step 4: Simplify right side
    5,875.60x = 43,952,531.28
  5. Step 5: Solve for x
    x = 43,952,531.28/5,875.60
  6. Step 6: Final answer
    x = 7,480.52

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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.