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Finding the Fourth Proportional to 60,981.59, 91,463.13 and 16,611.84

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Solution

The fourth proportional to 60,981.59, 91,463.13 and 16,611.84 is: 24,915.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,981.59 : 91,463.13 = 16,611.84 : x
  2. Step 2: Convert to fraction form
    60,981.59/91,463.13 = 16,611.84/x
  3. Step 3: Cross multiply
    60,981.59x = 91,463.13 × 16,611.84
  4. Step 4: Simplify right side
    60,981.59x = 1,519,370,881.46
  5. Step 5: Solve for x
    x = 1,519,370,881.46/60,981.59
  6. Step 6: Final answer
    x = 24,915.24

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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.