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Finding the Fourth Proportional to 18,468.26, 25,484.19 and 10,509.74

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Solution

The fourth proportional to 18,468.26, 25,484.19 and 10,509.74 is: 14,502.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468.26 : 25,484.19 = 10,509.74 : x
  2. Step 2: Convert to fraction form
    18,468.26/25,484.19 = 10,509.74/x
  3. Step 3: Cross multiply
    18,468.26x = 25,484.19 × 10,509.74
  4. Step 4: Simplify right side
    18,468.26x = 267,832,211.01
  5. Step 5: Solve for x
    x = 267,832,211.01/18,468.26
  6. Step 6: Final answer
    x = 14,502.30

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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.