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Finding the Fourth Proportional to 12,492.59, 18,737.48 and 3,725.44

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Solution

The fourth proportional to 12,492.59, 18,737.48 and 3,725.44 is: 5,587.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492.59 : 18,737.48 = 3,725.44 : x
  2. Step 2: Convert to fraction form
    12,492.59/18,737.48 = 3,725.44/x
  3. Step 3: Cross multiply
    12,492.59x = 18,737.48 × 3,725.44
  4. Step 4: Simplify right side
    12,492.59x = 69,805,319.96
  5. Step 5: Solve for x
    x = 69,805,319.96/12,492.59
  6. Step 6: Final answer
    x = 5,587.74

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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.