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Finding the Fourth Proportional to 61,948.40, 92,911.22 and 28,206.42

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Solution

The fourth proportional to 61,948.40, 92,911.22 and 28,206.42 is: 42,304.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,948.40 : 92,911.22 = 28,206.42 : x
  2. Step 2: Convert to fraction form
    61,948.40/92,911.22 = 28,206.42/x
  3. Step 3: Cross multiply
    61,948.40x = 92,911.22 × 28,206.42
  4. Step 4: Simplify right side
    61,948.40x = 2,620,692,894.03
  5. Step 5: Solve for x
    x = 2,620,692,894.03/61,948.40
  6. Step 6: Final answer
    x = 42,304.45

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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.