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Finding the Fourth Proportional to 25,989.62, 38,974.77 and 9,345.11

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Solution

The fourth proportional to 25,989.62, 38,974.77 and 9,345.11 is: 14,014.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,989.62 : 38,974.77 = 9,345.11 : x
  2. Step 2: Convert to fraction form
    25,989.62/38,974.77 = 9,345.11/x
  3. Step 3: Cross multiply
    25,989.62x = 38,974.77 × 9,345.11
  4. Step 4: Simplify right side
    25,989.62x = 364,223,318.00
  5. Step 5: Solve for x
    x = 364,223,318.00/25,989.62
  6. Step 6: Final answer
    x = 14,014.19

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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.