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Finding the Fourth Proportional to 59,671.91, 89,507.87 and 28,412.39

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Solution

The fourth proportional to 59,671.91, 89,507.87 and 28,412.39 is: 42,618.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,671.91 : 89,507.87 = 28,412.39 : x
  2. Step 2: Convert to fraction form
    59,671.91/89,507.87 = 28,412.39/x
  3. Step 3: Cross multiply
    59,671.91x = 89,507.87 × 28,412.39
  4. Step 4: Simplify right side
    59,671.91x = 2,543,131,920.91
  5. Step 5: Solve for x
    x = 2,543,131,920.91/59,671.91
  6. Step 6: Final answer
    x = 42,618.58

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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.