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Finding the Fourth Proportional to 57,384.84, 86,086.98 and 17,934.20

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Solution

The fourth proportional to 57,384.84, 86,086.98 and 17,934.20 is: 26,904.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,384.84 : 86,086.98 = 17,934.20 : x
  2. Step 2: Convert to fraction form
    57,384.84/86,086.98 = 17,934.20/x
  3. Step 3: Cross multiply
    57,384.84x = 86,086.98 × 17,934.20
  4. Step 4: Simplify right side
    57,384.84x = 1,543,900,686.28
  5. Step 5: Solve for x
    x = 1,543,900,686.28/57,384.84
  6. Step 6: Final answer
    x = 26,904.33

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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.