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Finding the Fourth Proportional to 14,951.80, 22,427.70 and 5,091.40

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Solution

The fourth proportional to 14,951.80, 22,427.70 and 5,091.40 is: 7,637.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,951.80 : 22,427.70 = 5,091.40 : x
  2. Step 2: Convert to fraction form
    14,951.80/22,427.70 = 5,091.40/x
  3. Step 3: Cross multiply
    14,951.80x = 22,427.70 × 5,091.40
  4. Step 4: Simplify right side
    14,951.80x = 114,188,391.78
  5. Step 5: Solve for x
    x = 114,188,391.78/14,951.80
  6. Step 6: Final answer
    x = 7,637.10

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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.