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Finding the Fourth Proportional to 54,573.65, 75,311.12 and 30,700.47

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Solution

The fourth proportional to 54,573.65, 75,311.12 and 30,700.47 is: 42,366.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,573.65 : 75,311.12 = 30,700.47 : x
  2. Step 2: Convert to fraction form
    54,573.65/75,311.12 = 30,700.47/x
  3. Step 3: Cross multiply
    54,573.65x = 75,311.12 × 30,700.47
  4. Step 4: Simplify right side
    54,573.65x = 2,312,086,626.72
  5. Step 5: Solve for x
    x = 2,312,086,626.72/54,573.65
  6. Step 6: Final answer
    x = 42,366.36

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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.