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Finding the Fourth Proportional to 60,877.30, 84,010.43 and 34,019.80

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Solution

The fourth proportional to 60,877.30, 84,010.43 and 34,019.80 is: 46,947.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,877.30 : 84,010.43 = 34,019.80 : x
  2. Step 2: Convert to fraction form
    60,877.30/84,010.43 = 34,019.80/x
  3. Step 3: Cross multiply
    60,877.30x = 84,010.43 × 34,019.80
  4. Step 4: Simplify right side
    60,877.30x = 2,858,017,941.46
  5. Step 5: Solve for x
    x = 2,858,017,941.46/60,877.30
  6. Step 6: Final answer
    x = 46,947.19

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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.