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Finding the Fourth Proportional to 61,535.61, 84,947.49 and 36,038.43

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Solution

The fourth proportional to 61,535.61, 84,947.49 and 36,038.43 is: 49,749.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,535.61 : 84,947.49 = 36,038.43 : x
  2. Step 2: Convert to fraction form
    61,535.61/84,947.49 = 36,038.43/x
  3. Step 3: Cross multiply
    61,535.61x = 84,947.49 × 36,038.43
  4. Step 4: Simplify right side
    61,535.61x = 3,061,374,172.04
  5. Step 5: Solve for x
    x = 3,061,374,172.04/61,535.61
  6. Step 6: Final answer
    x = 49,749.64

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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.