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Finding the Fourth Proportional to 62,899.13, 86,800.79 and 34,604.21

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Solution

The fourth proportional to 62,899.13, 86,800.79 and 34,604.21 is: 47,753.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,899.13 : 86,800.79 = 34,604.21 : x
  2. Step 2: Convert to fraction form
    62,899.13/86,800.79 = 34,604.21/x
  3. Step 3: Cross multiply
    62,899.13x = 86,800.79 × 34,604.21
  4. Step 4: Simplify right side
    62,899.13x = 3,003,672,417.83
  5. Step 5: Solve for x
    x = 3,003,672,417.83/62,899.13
  6. Step 6: Final answer
    x = 47,753.80

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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.