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Finding the Fourth Proportional to 61,521.66, 92,162.61 and 38,963.16

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Solution

The fourth proportional to 61,521.66, 92,162.61 and 38,963.16 is: 58,368.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,521.66 : 92,162.61 = 38,963.16 : x
  2. Step 2: Convert to fraction form
    61,521.66/92,162.61 = 38,963.16/x
  3. Step 3: Cross multiply
    61,521.66x = 92,162.61 × 38,963.16
  4. Step 4: Simplify right side
    61,521.66x = 3,590,946,519.45
  5. Step 5: Solve for x
    x = 3,590,946,519.45/61,521.66
  6. Step 6: Final answer
    x = 58,368.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.