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Finding the Fourth Proportional to 60,617.80, 83,687.26 and 40,508.74

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Solution

The fourth proportional to 60,617.80, 83,687.26 and 40,508.74 is: 55,925.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,617.80 : 83,687.26 = 40,508.74 : x
  2. Step 2: Convert to fraction form
    60,617.80/83,687.26 = 40,508.74/x
  3. Step 3: Cross multiply
    60,617.80x = 83,687.26 × 40,508.74
  4. Step 4: Simplify right side
    60,617.80x = 3,390,065,038.22
  5. Step 5: Solve for x
    x = 3,390,065,038.22/60,617.80
  6. Step 6: Final answer
    x = 55,925.25

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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.