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Finding the Fourth Proportional to 39,940.66, 59,583.90 and 38,854.76

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Solution

The fourth proportional to 39,940.66, 59,583.90 and 38,854.76 is: 57,963.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,940.66 : 59,583.90 = 38,854.76 : x
  2. Step 2: Convert to fraction form
    39,940.66/59,583.90 = 38,854.76/x
  3. Step 3: Cross multiply
    39,940.66x = 59,583.90 × 38,854.76
  4. Step 4: Simplify right side
    39,940.66x = 2,315,117,940.09
  5. Step 5: Solve for x
    x = 2,315,117,940.09/39,940.66
  6. Step 6: Final answer
    x = 57,963.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.