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Finding the Fourth Proportional to 38,089.53, 57,133.67 and 10,387.53

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Solution

The fourth proportional to 38,089.53, 57,133.67 and 10,387.53 is: 15,581.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,089.53 : 57,133.67 = 10,387.53 : x
  2. Step 2: Convert to fraction form
    38,089.53/57,133.67 = 10,387.53/x
  3. Step 3: Cross multiply
    38,089.53x = 57,133.67 × 10,387.53
  4. Step 4: Simplify right side
    38,089.53x = 593,477,711.14
  5. Step 5: Solve for x
    x = 593,477,711.14/38,089.53
  6. Step 6: Final answer
    x = 15,581.12

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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.