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Finding the Fourth Proportional to 59,818.60, 89,727.90 and 45,821.80

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Solution

The fourth proportional to 59,818.60, 89,727.90 and 45,821.80 is: 68,732.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,818.60 : 89,727.90 = 45,821.80 : x
  2. Step 2: Convert to fraction form
    59,818.60/89,727.90 = 45,821.80/x
  3. Step 3: Cross multiply
    59,818.60x = 89,727.90 × 45,821.80
  4. Step 4: Simplify right side
    59,818.60x = 4,111,493,888.22
  5. Step 5: Solve for x
    x = 4,111,493,888.22/59,818.60
  6. Step 6: Final answer
    x = 68,732.70

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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.