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Finding the Fourth Proportional to 26,915.70, 40,357.35 and 13,793.70

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Solution

The fourth proportional to 26,915.70, 40,357.35 and 13,793.70 is: 20,682.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,915.70 : 40,357.35 = 13,793.70 : x
  2. Step 2: Convert to fraction form
    26,915.70/40,357.35 = 13,793.70/x
  3. Step 3: Cross multiply
    26,915.70x = 40,357.35 × 13,793.70
  4. Step 4: Simplify right side
    26,915.70x = 556,677,178.70
  5. Step 5: Solve for x
    x = 556,677,178.70/26,915.70
  6. Step 6: Final answer
    x = 20,682.25

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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.