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Finding the Fourth Proportional to 40,565.98, 55,980.81 and 22,660.93

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Solution

The fourth proportional to 40,565.98, 55,980.81 and 22,660.93 is: 31,271.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,565.98 : 55,980.81 = 22,660.93 : x
  2. Step 2: Convert to fraction form
    40,565.98/55,980.81 = 22,660.93/x
  3. Step 3: Cross multiply
    40,565.98x = 55,980.81 × 22,660.93
  4. Step 4: Simplify right side
    40,565.98x = 1,268,577,216.75
  5. Step 5: Solve for x
    x = 1,268,577,216.75/40,565.98
  6. Step 6: Final answer
    x = 31,271.95

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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.