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Finding the Fourth Proportional to 5,701.80, 8,540.55 and 4,972.80

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Solution

The fourth proportional to 5,701.80, 8,540.55 and 4,972.80 is: 7,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,701.80 : 8,540.55 = 4,972.80 : x
  2. Step 2: Convert to fraction form
    5,701.80/8,540.55 = 4,972.80/x
  3. Step 3: Cross multiply
    5,701.80x = 8,540.55 × 4,972.80
  4. Step 4: Simplify right side
    5,701.80x = 42,470,447.04
  5. Step 5: Solve for x
    x = 42,470,447.04/5,701.80
  6. Step 6: Final answer
    x = 7,448.60

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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.