Home / 28,082.61-38,753.19-18,510.84

Finding the Fourth Proportional to 28,082.61, 38,753.19 and 18,510.84

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Solution

The fourth proportional to 28,082.61, 38,753.19 and 18,510.84 is: 25,544.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082.61 : 38,753.19 = 18,510.84 : x
  2. Step 2: Convert to fraction form
    28,082.61/38,753.19 = 18,510.84/x
  3. Step 3: Cross multiply
    28,082.61x = 38,753.19 × 18,510.84
  4. Step 4: Simplify right side
    28,082.61x = 717,354,099.58
  5. Step 5: Solve for x
    x = 717,354,099.58/28,082.61
  6. Step 6: Final answer
    x = 25,544.42

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Half scale
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Double scale
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Similar ratio
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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.