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Finding the Fourth Proportional to 15,043.25, 22,549.98 and 7,131.89

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Solution

The fourth proportional to 15,043.25, 22,549.98 and 7,131.89 is: 10,690.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,043.25 : 22,549.98 = 7,131.89 : x
  2. Step 2: Convert to fraction form
    15,043.25/22,549.98 = 7,131.89/x
  3. Step 3: Cross multiply
    15,043.25x = 22,549.98 × 7,131.89
  4. Step 4: Simplify right side
    15,043.25x = 160,823,864.11
  5. Step 5: Solve for x
    x = 160,823,864.11/15,043.25
  6. Step 6: Final answer
    x = 10,690.77

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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.