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Finding the Fourth Proportional to 38,549.53, 57,811.91 and 12,248.12

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Solution

The fourth proportional to 38,549.53, 57,811.91 and 12,248.12 is: 18,368.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,549.53 : 57,811.91 = 12,248.12 : x
  2. Step 2: Convert to fraction form
    38,549.53/57,811.91 = 12,248.12/x
  3. Step 3: Cross multiply
    38,549.53x = 57,811.91 × 12,248.12
  4. Step 4: Simplify right side
    38,549.53x = 708,087,294.40
  5. Step 5: Solve for x
    x = 708,087,294.40/38,549.53
  6. Step 6: Final answer
    x = 18,368.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.