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Finding the Fourth Proportional to 59,990.20, 89,855.70 and 49,622.20

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Solution

The fourth proportional to 59,990.20, 89,855.70 and 49,622.20 is: 74,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,990.20 : 89,855.70 = 49,622.20 : x
  2. Step 2: Convert to fraction form
    59,990.20/89,855.70 = 49,622.20/x
  3. Step 3: Cross multiply
    59,990.20x = 89,855.70 × 49,622.20
  4. Step 4: Simplify right side
    59,990.20x = 4,458,837,516.54
  5. Step 5: Solve for x
    x = 4,458,837,516.54/59,990.20
  6. Step 6: Final answer
    x = 74,326.10

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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.