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Finding the Fourth Proportional to 58,393.20, 87,269.84 and 42,631.44

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Solution

The fourth proportional to 58,393.20, 87,269.84 and 42,631.44 is: 63,713.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,393.20 : 87,269.84 = 42,631.44 : x
  2. Step 2: Convert to fraction form
    58,393.20/87,269.84 = 42,631.44/x
  3. Step 3: Cross multiply
    58,393.20x = 87,269.84 × 42,631.44
  4. Step 4: Simplify right side
    58,393.20x = 3,720,438,947.77
  5. Step 5: Solve for x
    x = 3,720,438,947.77/58,393.20
  6. Step 6: Final answer
    x = 63,713.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.