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Finding the Fourth Proportional to 45,210.80, 67,766.94 and 38,616.98

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Solution

The fourth proportional to 45,210.80, 67,766.94 and 38,616.98 is: 57,883.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,210.80 : 67,766.94 = 38,616.98 : x
  2. Step 2: Convert to fraction form
    45,210.80/67,766.94 = 38,616.98/x
  3. Step 3: Cross multiply
    45,210.80x = 67,766.94 × 38,616.98
  4. Step 4: Simplify right side
    45,210.80x = 2,616,954,566.64
  5. Step 5: Solve for x
    x = 2,616,954,566.64/45,210.80
  6. Step 6: Final answer
    x = 57,883.39

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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.