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Finding the Fourth Proportional to 59,690.80, 82,407.35 and 39,574.92

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Solution

The fourth proportional to 59,690.80, 82,407.35 and 39,574.92 is: 54,635.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,690.80 : 82,407.35 = 39,574.92 : x
  2. Step 2: Convert to fraction form
    59,690.80/82,407.35 = 39,574.92/x
  3. Step 3: Cross multiply
    59,690.80x = 82,407.35 × 39,574.92
  4. Step 4: Simplify right side
    59,690.80x = 3,261,263,673.75
  5. Step 5: Solve for x
    x = 3,261,263,673.75/59,690.80
  6. Step 6: Final answer
    x = 54,635.95

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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.