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Finding the Fourth Proportional to 83,492.44, 125,238.57 and 20,312.17

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Solution

The fourth proportional to 83,492.44, 125,238.57 and 20,312.17 is: 30,468.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,492.44 : 125,238.57 = 20,312.17 : x
  2. Step 2: Convert to fraction form
    83,492.44/125,238.57 = 20,312.17/x
  3. Step 3: Cross multiply
    83,492.44x = 125,238.57 × 20,312.17
  4. Step 4: Simplify right side
    83,492.44x = 2,543,867,124.40
  5. Step 5: Solve for x
    x = 2,543,867,124.40/83,492.44
  6. Step 6: Final answer
    x = 30,468.23

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1.5x scale

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.