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Finding the Fourth Proportional to 18,425.60, 25,426.08 and 10,041.92

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Solution

The fourth proportional to 18,425.60, 25,426.08 and 10,041.92 is: 13,857.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.60 : 25,426.08 = 10,041.92 : x
  2. Step 2: Convert to fraction form
    18,425.60/25,426.08 = 10,041.92/x
  3. Step 3: Cross multiply
    18,425.60x = 25,426.08 × 10,041.92
  4. Step 4: Simplify right side
    18,425.60x = 255,326,661.27
  5. Step 5: Solve for x
    x = 255,326,661.27/18,425.60
  6. Step 6: Final answer
    x = 13,857.17

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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.