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Finding the Fourth Proportional to 65,104.40, 89,844.80 and 38,248.04

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Solution

The fourth proportional to 65,104.40, 89,844.80 and 38,248.04 is: 52,782.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,104.40 : 89,844.80 = 38,248.04 : x
  2. Step 2: Convert to fraction form
    65,104.40/89,844.80 = 38,248.04/x
  3. Step 3: Cross multiply
    65,104.40x = 89,844.80 × 38,248.04
  4. Step 4: Simplify right side
    65,104.40x = 3,436,387,504.19
  5. Step 5: Solve for x
    x = 3,436,387,504.19/65,104.40
  6. Step 6: Final answer
    x = 52,782.72

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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.