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Finding the Fourth Proportional to 61,901.74, 85,424.75 and 36,409.18

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Solution

The fourth proportional to 61,901.74, 85,424.75 and 36,409.18 is: 50,244.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,901.74 : 85,424.75 = 36,409.18 : x
  2. Step 2: Convert to fraction form
    61,901.74/85,424.75 = 36,409.18/x
  3. Step 3: Cross multiply
    61,901.74x = 85,424.75 × 36,409.18
  4. Step 4: Simplify right side
    61,901.74x = 3,110,245,205.10
  5. Step 5: Solve for x
    x = 3,110,245,205.10/61,901.74
  6. Step 6: Final answer
    x = 50,244.87

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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.