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Finding the Fourth Proportional to 25,615.40, 38,423.10 and 24,405.80

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Solution

The fourth proportional to 25,615.40, 38,423.10 and 24,405.80 is: 36,608.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,615.40 : 38,423.10 = 24,405.80 : x
  2. Step 2: Convert to fraction form
    25,615.40/38,423.10 = 24,405.80/x
  3. Step 3: Cross multiply
    25,615.40x = 38,423.10 × 24,405.80
  4. Step 4: Simplify right side
    25,615.40x = 937,746,493.98
  5. Step 5: Solve for x
    x = 937,746,493.98/25,615.40
  6. Step 6: Final answer
    x = 36,608.70

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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.