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Finding the Fourth Proportional to 18,125.60, 24,391.80 and 18,125.60

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Solution

The fourth proportional to 18,125.60, 24,391.80 and 18,125.60 is: 24,391.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.60 : 24,391.80 = 18,125.60 : x
  2. Step 2: Convert to fraction form
    18,125.60/24,391.80 = 18,125.60/x
  3. Step 3: Cross multiply
    18,125.60x = 24,391.80 × 18,125.60
  4. Step 4: Simplify right side
    18,125.60x = 442,116,010.08
  5. Step 5: Solve for x
    x = 442,116,010.08/18,125.60
  6. Step 6: Final answer
    x = 24,391.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.