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Finding the Fourth Proportional to 61,085.90, 84,292.89 and 34,229.54

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Solution

The fourth proportional to 61,085.90, 84,292.89 and 34,229.54 is: 47,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,085.90 : 84,292.89 = 34,229.54 : x
  2. Step 2: Convert to fraction form
    61,085.90/84,292.89 = 34,229.54/x
  3. Step 3: Cross multiply
    61,085.90x = 84,292.89 × 34,229.54
  4. Step 4: Simplify right side
    61,085.90x = 2,885,306,428.51
  5. Step 5: Solve for x
    x = 2,885,306,428.51/61,085.90
  6. Step 6: Final answer
    x = 47,233.60

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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.