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Finding the Fourth Proportional to 61,312.93, 84,609.11 and 35,821.65

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Solution

The fourth proportional to 61,312.93, 84,609.11 and 35,821.65 is: 49,432.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,312.93 : 84,609.11 = 35,821.65 : x
  2. Step 2: Convert to fraction form
    61,312.93/84,609.11 = 35,821.65/x
  3. Step 3: Cross multiply
    61,312.93x = 84,609.11 × 35,821.65
  4. Step 4: Simplify right side
    61,312.93x = 3,030,838,014.79
  5. Step 5: Solve for x
    x = 3,030,838,014.79/61,312.93
  6. Step 6: Final answer
    x = 49,432.28

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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.