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Finding the Fourth Proportional to 62,808.30, 94,212.45 and 21,255.30

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Solution

The fourth proportional to 62,808.30, 94,212.45 and 21,255.30 is: 31,882.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,808.30 : 94,212.45 = 21,255.30 : x
  2. Step 2: Convert to fraction form
    62,808.30/94,212.45 = 21,255.30/x
  3. Step 3: Cross multiply
    62,808.30x = 94,212.45 × 21,255.30
  4. Step 4: Simplify right side
    62,808.30x = 2,002,513,888.49
  5. Step 5: Solve for x
    x = 2,002,513,888.49/62,808.30
  6. Step 6: Final answer
    x = 31,882.95

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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.