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Finding the Fourth Proportional to 34,671.78, 47,847.02 and 18,756.18

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Solution

The fourth proportional to 34,671.78, 47,847.02 and 18,756.18 is: 25,883.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,671.78 : 47,847.02 = 18,756.18 : x
  2. Step 2: Convert to fraction form
    34,671.78/47,847.02 = 18,756.18/x
  3. Step 3: Cross multiply
    34,671.78x = 47,847.02 × 18,756.18
  4. Step 4: Simplify right side
    34,671.78x = 897,427,225.80
  5. Step 5: Solve for x
    x = 897,427,225.80/34,671.78
  6. Step 6: Final answer
    x = 25,883.51

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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.