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Finding the Fourth Proportional to 5,820.70, 8,686.01 and 5,197.71

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Solution

The fourth proportional to 5,820.70, 8,686.01 and 5,197.71 is: 7,756.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,820.70 : 8,686.01 = 5,197.71 : x
  2. Step 2: Convert to fraction form
    5,820.70/8,686.01 = 5,197.71/x
  3. Step 3: Cross multiply
    5,820.70x = 8,686.01 × 5,197.71
  4. Step 4: Simplify right side
    5,820.70x = 45,147,361.04
  5. Step 5: Solve for x
    x = 45,147,361.04/5,820.70
  6. Step 6: Final answer
    x = 7,756.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.