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Finding the Fourth Proportional to 8,948.74, 13,423.78 and 2,374.78

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Solution

The fourth proportional to 8,948.74, 13,423.78 and 2,374.78 is: 3,562.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.74 : 13,423.78 = 2,374.78 : x
  2. Step 2: Convert to fraction form
    8,948.74/13,423.78 = 2,374.78/x
  3. Step 3: Cross multiply
    8,948.74x = 13,423.78 × 2,374.78
  4. Step 4: Simplify right side
    8,948.74x = 31,878,524.27
  5. Step 5: Solve for x
    x = 31,878,524.27/8,948.74
  6. Step 6: Final answer
    x = 3,562.35

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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.