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Finding the Fourth Proportional to 85,565.93, 128,339.08 and 22,392.17

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Solution

The fourth proportional to 85,565.93, 128,339.08 and 22,392.17 is: 33,585.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,565.93 : 128,339.08 = 22,392.17 : x
  2. Step 2: Convert to fraction form
    85,565.93/128,339.08 = 22,392.17/x
  3. Step 3: Cross multiply
    85,565.93x = 128,339.08 × 22,392.17
  4. Step 4: Simplify right side
    85,565.93x = 2,873,790,497.00
  5. Step 5: Solve for x
    x = 2,873,790,497.00/85,565.93
  6. Step 6: Final answer
    x = 33,585.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.