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Finding the Fourth Proportional to 61,302.76, 91,934.06 and 19,740.04

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Solution

The fourth proportional to 61,302.76, 91,934.06 and 19,740.04 is: 29,603.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,302.76 : 91,934.06 = 19,740.04 : x
  2. Step 2: Convert to fraction form
    61,302.76/91,934.06 = 19,740.04/x
  3. Step 3: Cross multiply
    61,302.76x = 91,934.06 × 19,740.04
  4. Step 4: Simplify right side
    61,302.76x = 1,814,782,021.76
  5. Step 5: Solve for x
    x = 1,814,782,021.76/61,302.76
  6. Step 6: Final answer
    x = 29,603.59

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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.