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Finding the Fourth Proportional to 57,393.70, 86,102.70 and 17,409.40

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Solution

The fourth proportional to 57,393.70, 86,102.70 and 17,409.40 is: 26,117.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,393.70 : 86,102.70 = 17,409.40 : x
  2. Step 2: Convert to fraction form
    57,393.70/86,102.70 = 17,409.40/x
  3. Step 3: Cross multiply
    57,393.70x = 86,102.70 × 17,409.40
  4. Step 4: Simplify right side
    57,393.70x = 1,498,996,345.38
  5. Step 5: Solve for x
    x = 1,498,996,345.38/57,393.70
  6. Step 6: Final answer
    x = 26,117.79

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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.