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Finding the Fourth Proportional to 57,511.74, 86,254.20 and 21,960.01

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Solution

The fourth proportional to 57,511.74, 86,254.20 and 21,960.01 is: 32,934.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,511.74 : 86,254.20 = 21,960.01 : x
  2. Step 2: Convert to fraction form
    57,511.74/86,254.20 = 21,960.01/x
  3. Step 3: Cross multiply
    57,511.74x = 86,254.20 × 21,960.01
  4. Step 4: Simplify right side
    57,511.74x = 1,894,142,717.18
  5. Step 5: Solve for x
    x = 1,894,142,717.18/57,511.74
  6. Step 6: Final answer
    x = 32,934.89

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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.