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Finding the Fourth Proportional to 25,801.77, 38,719.92 and 9,385.77

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Solution

The fourth proportional to 25,801.77, 38,719.92 and 9,385.77 is: 14,084.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,801.77 : 38,719.92 = 9,385.77 : x
  2. Step 2: Convert to fraction form
    25,801.77/38,719.92 = 9,385.77/x
  3. Step 3: Cross multiply
    25,801.77x = 38,719.92 × 9,385.77
  4. Step 4: Simplify right side
    25,801.77x = 363,416,263.54
  5. Step 5: Solve for x
    x = 363,416,263.54/25,801.77
  6. Step 6: Final answer
    x = 14,084.94

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1.5x scale

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.