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Finding the Fourth Proportional to 61,943.86, 85,484.12 and 35,085.98

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Solution

The fourth proportional to 61,943.86, 85,484.12 and 35,085.98 is: 48,419.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,943.86 : 85,484.12 = 35,085.98 : x
  2. Step 2: Convert to fraction form
    61,943.86/85,484.12 = 35,085.98/x
  3. Step 3: Cross multiply
    61,943.86x = 85,484.12 × 35,085.98
  4. Step 4: Simplify right side
    61,943.86x = 2,999,294,124.64
  5. Step 5: Solve for x
    x = 2,999,294,124.64/61,943.86
  6. Step 6: Final answer
    x = 48,419.55

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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.