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Finding the Fourth Proportional to 72,302.57, 108,468.50 and 25,588.25

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Solution

The fourth proportional to 72,302.57, 108,468.50 and 25,588.25 is: 38,387.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,302.57 : 108,468.50 = 25,588.25 : x
  2. Step 2: Convert to fraction form
    72,302.57/108,468.50 = 25,588.25/x
  3. Step 3: Cross multiply
    72,302.57x = 108,468.50 × 25,588.25
  4. Step 4: Simplify right side
    72,302.57x = 2,775,518,424.84
  5. Step 5: Solve for x
    x = 2,775,518,424.84/72,302.57
  6. Step 6: Final answer
    x = 38,387.55

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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.