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Finding the Fourth Proportional to 61,261.80, 84,541.62 and 34,038.06

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Solution

The fourth proportional to 61,261.80, 84,541.62 and 34,038.06 is: 46,972.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,261.80 : 84,541.62 = 34,038.06 : x
  2. Step 2: Convert to fraction form
    61,261.80/84,541.62 = 34,038.06/x
  3. Step 3: Cross multiply
    61,261.80x = 84,541.62 × 34,038.06
  4. Step 4: Simplify right side
    61,261.80x = 2,877,632,734.06
  5. Step 5: Solve for x
    x = 2,877,632,734.06/61,261.80
  6. Step 6: Final answer
    x = 46,972.71

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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.