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Finding the Fourth Proportional to 18,461.20, 25,473.92 and 10,501.92

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Solution

The fourth proportional to 18,461.20, 25,473.92 and 10,501.92 is: 14,491.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,461.20 : 25,473.92 = 10,501.92 : x
  2. Step 2: Convert to fraction form
    18,461.20/25,473.92 = 10,501.92/x
  3. Step 3: Cross multiply
    18,461.20x = 25,473.92 × 10,501.92
  4. Step 4: Simplify right side
    18,461.20x = 267,525,069.93
  5. Step 5: Solve for x
    x = 267,525,069.93/18,461.20
  6. Step 6: Final answer
    x = 14,491.21

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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.