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Finding the Fourth Proportional to 18,332.55, 25,298.91 and 9,949.05

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Solution

The fourth proportional to 18,332.55, 25,298.91 and 9,949.05 is: 13,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,332.55 : 25,298.91 = 9,949.05 : x
  2. Step 2: Convert to fraction form
    18,332.55/25,298.91 = 9,949.05/x
  3. Step 3: Cross multiply
    18,332.55x = 25,298.91 × 9,949.05
  4. Step 4: Simplify right side
    18,332.55x = 251,700,120.54
  5. Step 5: Solve for x
    x = 251,700,120.54/18,332.55
  6. Step 6: Final answer
    x = 13,729.68

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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.