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Finding the Fourth Proportional to 61,313.81, 84,615.29 and 34,456.85

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Solution

The fourth proportional to 61,313.81, 84,615.29 and 34,456.85 is: 47,551.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,313.81 : 84,615.29 = 34,456.85 : x
  2. Step 2: Convert to fraction form
    61,313.81/84,615.29 = 34,456.85/x
  3. Step 3: Cross multiply
    61,313.81x = 84,615.29 × 34,456.85
  4. Step 4: Simplify right side
    61,313.81x = 2,915,576,182.95
  5. Step 5: Solve for x
    x = 2,915,576,182.95/61,313.81
  6. Step 6: Final answer
    x = 47,551.70

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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.