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Finding the Fourth Proportional to 57,729.60, 79,681.92 and 37,636.32

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Solution

The fourth proportional to 57,729.60, 79,681.92 and 37,636.32 is: 51,947.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,729.60 : 79,681.92 = 37,636.32 : x
  2. Step 2: Convert to fraction form
    57,729.60/79,681.92 = 37,636.32/x
  3. Step 3: Cross multiply
    57,729.60x = 79,681.92 × 37,636.32
  4. Step 4: Simplify right side
    57,729.60x = 2,998,934,239.33
  5. Step 5: Solve for x
    x = 2,998,934,239.33/57,729.60
  6. Step 6: Final answer
    x = 51,947.95

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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.