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Finding the Fourth Proportional to 39,898.40, 59,800.88 and 25,648.70

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Solution

The fourth proportional to 39,898.40, 59,800.88 and 25,648.70 is: 38,443.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,898.40 : 59,800.88 = 25,648.70 : x
  2. Step 2: Convert to fraction form
    39,898.40/59,800.88 = 25,648.70/x
  3. Step 3: Cross multiply
    39,898.40x = 59,800.88 × 25,648.70
  4. Step 4: Simplify right side
    39,898.40x = 1,533,814,830.86
  5. Step 5: Solve for x
    x = 1,533,814,830.86/39,898.40
  6. Step 6: Final answer
    x = 38,443.02

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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.