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Finding the Fourth Proportional to 61,565.78, 92,351.43 and 18,868.07

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Solution

The fourth proportional to 61,565.78, 92,351.43 and 18,868.07 is: 28,302.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,565.78 : 92,351.43 = 18,868.07 : x
  2. Step 2: Convert to fraction form
    61,565.78/92,351.43 = 18,868.07/x
  3. Step 3: Cross multiply
    61,565.78x = 92,351.43 × 18,868.07
  4. Step 4: Simplify right side
    61,565.78x = 1,742,493,245.84
  5. Step 5: Solve for x
    x = 1,742,493,245.84/61,565.78
  6. Step 6: Final answer
    x = 28,302.95

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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.