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Finding the Fourth Proportional to 61,605.96, 85,009.91 and 45,481.83

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Solution

The fourth proportional to 61,605.96, 85,009.91 and 45,481.83 is: 62,760.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,605.96 : 85,009.91 = 45,481.83 : x
  2. Step 2: Convert to fraction form
    61,605.96/85,009.91 = 45,481.83/x
  3. Step 3: Cross multiply
    61,605.96x = 85,009.91 × 45,481.83
  4. Step 4: Simplify right side
    61,605.96x = 3,866,406,047.53
  5. Step 5: Solve for x
    x = 3,866,406,047.53/61,605.96
  6. Step 6: Final answer
    x = 62,760.26

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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.