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Finding the Fourth Proportional to 61,988, 85,532.86 and 35,124.96

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Solution

The fourth proportional to 61,988, 85,532.86 and 35,124.96 is: 48,466.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,988 : 85,532.86 = 35,124.96 : x
  2. Step 2: Convert to fraction form
    61,988/85,532.86 = 35,124.96/x
  3. Step 3: Cross multiply
    61,988x = 85,532.86 × 35,124.96
  4. Step 4: Simplify right side
    61,988x = 3,004,338,286.19
  5. Step 5: Solve for x
    x = 3,004,338,286.19/61,988
  6. Step 6: Final answer
    x = 48,466.45

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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.