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Finding the Fourth Proportional to 61,121.81, 84,347.58 and 34,264.24

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Solution

The fourth proportional to 61,121.81, 84,347.58 and 34,264.24 is: 47,284.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,121.81 : 84,347.58 = 34,264.24 : x
  2. Step 2: Convert to fraction form
    61,121.81/84,347.58 = 34,264.24/x
  3. Step 3: Cross multiply
    61,121.81x = 84,347.58 × 34,264.24
  4. Step 4: Simplify right side
    61,121.81x = 2,890,105,724.54
  5. Step 5: Solve for x
    x = 2,890,105,724.54/61,121.81
  6. Step 6: Final answer
    x = 47,284.36

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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.