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Finding the Fourth Proportional to 61,083.80, 84,280.90 and 40,933.32

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Solution

The fourth proportional to 61,083.80, 84,280.90 and 40,933.32 is: 56,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,083.80 : 84,280.90 = 40,933.32 : x
  2. Step 2: Convert to fraction form
    61,083.80/84,280.90 = 40,933.32/x
  3. Step 3: Cross multiply
    61,083.80x = 84,280.90 × 40,933.32
  4. Step 4: Simplify right side
    61,083.80x = 3,449,897,049.59
  5. Step 5: Solve for x
    x = 3,449,897,049.59/61,083.80
  6. Step 6: Final answer
    x = 56,478.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.