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Finding the Fourth Proportional to 63,138, 94,707.18 and 16,391.28

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Solution

The fourth proportional to 63,138, 94,707.18 and 16,391.28 is: 24,586.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,138 : 94,707.18 = 16,391.28 : x
  2. Step 2: Convert to fraction form
    63,138/94,707.18 = 16,391.28/x
  3. Step 3: Cross multiply
    63,138x = 94,707.18 × 16,391.28
  4. Step 4: Simplify right side
    63,138x = 1,552,371,905.39
  5. Step 5: Solve for x
    x = 1,552,371,905.39/63,138
  6. Step 6: Final answer
    x = 24,586.97

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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.