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Finding the Fourth Proportional to 60,678.40, 83,726.04 and 33,815.04

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Solution

The fourth proportional to 60,678.40, 83,726.04 and 33,815.04 is: 46,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,678.40 : 83,726.04 = 33,815.04 : x
  2. Step 2: Convert to fraction form
    60,678.40/83,726.04 = 33,815.04/x
  3. Step 3: Cross multiply
    60,678.40x = 83,726.04 × 33,815.04
  4. Step 4: Simplify right side
    60,678.40x = 2,831,199,391.64
  5. Step 5: Solve for x
    x = 2,831,199,391.64/60,678.40
  6. Step 6: Final answer
    x = 46,659.10

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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.