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Finding the Fourth Proportional to 61,299.80, 84,588.54 and 34,440.20

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Solution

The fourth proportional to 61,299.80, 84,588.54 and 34,440.20 is: 47,524.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,299.80 : 84,588.54 = 34,440.20 : x
  2. Step 2: Convert to fraction form
    61,299.80/84,588.54 = 34,440.20/x
  3. Step 3: Cross multiply
    61,299.80x = 84,588.54 × 34,440.20
  4. Step 4: Simplify right side
    61,299.80x = 2,913,246,235.31
  5. Step 5: Solve for x
    x = 2,913,246,235.31/61,299.80
  6. Step 6: Final answer
    x = 47,524.56

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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.