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Finding the Fourth Proportional to 48,266.84, 72,729.11 and 39,693.80

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Solution

The fourth proportional to 48,266.84, 72,729.11 and 39,693.80 is: 59,811.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,266.84 : 72,729.11 = 39,693.80 : x
  2. Step 2: Convert to fraction form
    48,266.84/72,729.11 = 39,693.80/x
  3. Step 3: Cross multiply
    48,266.84x = 72,729.11 × 39,693.80
  4. Step 4: Simplify right side
    48,266.84x = 2,886,894,746.52
  5. Step 5: Solve for x
    x = 2,886,894,746.52/48,266.84
  6. Step 6: Final answer
    x = 59,811.14

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.