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Finding the Fourth Proportional to 32,915.75, 45,423.75 and 18,011.75

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Solution

The fourth proportional to 32,915.75, 45,423.75 and 18,011.75 is: 24,856.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,915.75 : 45,423.75 = 18,011.75 : x
  2. Step 2: Convert to fraction form
    32,915.75/45,423.75 = 18,011.75/x
  3. Step 3: Cross multiply
    32,915.75x = 45,423.75 × 18,011.75
  4. Step 4: Simplify right side
    32,915.75x = 818,161,229.06
  5. Step 5: Solve for x
    x = 818,161,229.06/32,915.75
  6. Step 6: Final answer
    x = 24,856.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.