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Finding the Fourth Proportional to 55,594.62, 76,719.16 and 31,065.63

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Solution

The fourth proportional to 55,594.62, 76,719.16 and 31,065.63 is: 42,869.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,594.62 : 76,719.16 = 31,065.63 : x
  2. Step 2: Convert to fraction form
    55,594.62/76,719.16 = 31,065.63/x
  3. Step 3: Cross multiply
    55,594.62x = 76,719.16 × 31,065.63
  4. Step 4: Simplify right side
    55,594.62x = 2,383,329,046.41
  5. Step 5: Solve for x
    x = 2,383,329,046.41/55,594.62
  6. Step 6: Final answer
    x = 42,869.78

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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.