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Finding the Fourth Proportional to 61,203.93, 91,732.08 and 31,605.63

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Solution

The fourth proportional to 61,203.93, 91,732.08 and 31,605.63 is: 47,370.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,203.93 : 91,732.08 = 31,605.63 : x
  2. Step 2: Convert to fraction form
    61,203.93/91,732.08 = 31,605.63/x
  3. Step 3: Cross multiply
    61,203.93x = 91,732.08 × 31,605.63
  4. Step 4: Simplify right side
    61,203.93x = 2,899,250,179.61
  5. Step 5: Solve for x
    x = 2,899,250,179.61/61,203.93
  6. Step 6: Final answer
    x = 47,370.33

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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.