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Finding the Fourth Proportional to 45,276.30, 67,870.71 and 15,671.88

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Solution

The fourth proportional to 45,276.30, 67,870.71 and 15,671.88 is: 23,492.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,276.30 : 67,870.71 = 15,671.88 : x
  2. Step 2: Convert to fraction form
    45,276.30/67,870.71 = 15,671.88/x
  3. Step 3: Cross multiply
    45,276.30x = 67,870.71 × 15,671.88
  4. Step 4: Simplify right side
    45,276.30x = 1,063,661,622.63
  5. Step 5: Solve for x
    x = 1,063,661,622.63/45,276.30
  6. Step 6: Final answer
    x = 23,492.68

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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.