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Finding the Fourth Proportional to 60,772.66, 83,870.49 and 33,920.40

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Solution

The fourth proportional to 60,772.66, 83,870.49 and 33,920.40 is: 46,812.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,772.66 : 83,870.49 = 33,920.40 : x
  2. Step 2: Convert to fraction form
    60,772.66/83,870.49 = 33,920.40/x
  3. Step 3: Cross multiply
    60,772.66x = 83,870.49 × 33,920.40
  4. Step 4: Simplify right side
    60,772.66x = 2,844,920,569.00
  5. Step 5: Solve for x
    x = 2,844,920,569.00/60,772.66
  6. Step 6: Final answer
    x = 46,812.51

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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.