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Finding the Fourth Proportional to 60,880.60, 83,960.83 and 38,221.71

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Solution

The fourth proportional to 60,880.60, 83,960.83 and 38,221.71 is: 52,711.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,880.60 : 83,960.83 = 38,221.71 : x
  2. Step 2: Convert to fraction form
    60,880.60/83,960.83 = 38,221.71/x
  3. Step 3: Cross multiply
    60,880.60x = 83,960.83 × 38,221.71
  4. Step 4: Simplify right side
    60,880.60x = 3,209,125,884.71
  5. Step 5: Solve for x
    x = 3,209,125,884.71/60,880.60
  6. Step 6: Final answer
    x = 52,711.80

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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.