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Finding the Fourth Proportional to 25,920.76, 35,770.88 and 14,743.48

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Solution

The fourth proportional to 25,920.76, 35,770.88 and 14,743.48 is: 20,346.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,920.76 : 35,770.88 = 14,743.48 : x
  2. Step 2: Convert to fraction form
    25,920.76/35,770.88 = 14,743.48/x
  3. Step 3: Cross multiply
    25,920.76x = 35,770.88 × 14,743.48
  4. Step 4: Simplify right side
    25,920.76x = 527,387,253.86
  5. Step 5: Solve for x
    x = 527,387,253.86/25,920.76
  6. Step 6: Final answer
    x = 20,346.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.