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Finding the Fourth Proportional to 5,685.86, 7,847.10 and 3,329.98

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Solution

The fourth proportional to 5,685.86, 7,847.10 and 3,329.98 is: 4,595.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.86 : 7,847.10 = 3,329.98 : x
  2. Step 2: Convert to fraction form
    5,685.86/7,847.10 = 3,329.98/x
  3. Step 3: Cross multiply
    5,685.86x = 7,847.10 × 3,329.98
  4. Step 4: Simplify right side
    5,685.86x = 26,130,686.06
  5. Step 5: Solve for x
    x = 26,130,686.06/5,685.86
  6. Step 6: Final answer
    x = 4,595.73

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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.