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Finding the Fourth Proportional to 61,843.48, 92,772.51 and 19,708.90

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Solution

The fourth proportional to 61,843.48, 92,772.51 and 19,708.90 is: 29,565.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,843.48 : 92,772.51 = 19,708.90 : x
  2. Step 2: Convert to fraction form
    61,843.48/92,772.51 = 19,708.90/x
  3. Step 3: Cross multiply
    61,843.48x = 92,772.51 × 19,708.90
  4. Step 4: Simplify right side
    61,843.48x = 1,828,444,122.34
  5. Step 5: Solve for x
    x = 1,828,444,122.34/61,843.48
  6. Step 6: Final answer
    x = 29,565.67

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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.