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Finding the Fourth Proportional to 38,314.92, 57,472.98 and 12,019.88

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Solution

The fourth proportional to 38,314.92, 57,472.98 and 12,019.88 is: 18,030.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,314.92 : 57,472.98 = 12,019.88 : x
  2. Step 2: Convert to fraction form
    38,314.92/57,472.98 = 12,019.88/x
  3. Step 3: Cross multiply
    38,314.92x = 57,472.98 × 12,019.88
  4. Step 4: Simplify right side
    38,314.92x = 690,818,322.84
  5. Step 5: Solve for x
    x = 690,818,322.84/38,314.92
  6. Step 6: Final answer
    x = 18,030.01

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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.