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Finding the Fourth Proportional to 18,424.12, 25,425.78 and 10,041.16

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Solution

The fourth proportional to 18,424.12, 25,425.78 and 10,041.16 is: 13,857.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,424.12 : 25,425.78 = 10,041.16 : x
  2. Step 2: Convert to fraction form
    18,424.12/25,425.78 = 10,041.16/x
  3. Step 3: Cross multiply
    18,424.12x = 25,425.78 × 10,041.16
  4. Step 4: Simplify right side
    18,424.12x = 255,304,325.10
  5. Step 5: Solve for x
    x = 255,304,325.10/18,424.12
  6. Step 6: Final answer
    x = 13,857.07

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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.