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Finding the Fourth Proportional to 79,248.60, 118,873.08 and 20,084.28

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Solution

The fourth proportional to 79,248.60, 118,873.08 and 20,084.28 is: 30,126.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,248.60 : 118,873.08 = 20,084.28 : x
  2. Step 2: Convert to fraction form
    79,248.60/118,873.08 = 20,084.28/x
  3. Step 3: Cross multiply
    79,248.60x = 118,873.08 × 20,084.28
  4. Step 4: Simplify right side
    79,248.60x = 2,387,480,223.18
  5. Step 5: Solve for x
    x = 2,387,480,223.18/79,248.60
  6. Step 6: Final answer
    x = 30,126.47

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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.