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Finding the Fourth Proportional to 3,614.01, 5,420.98 and 1,859.50

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Solution

The fourth proportional to 3,614.01, 5,420.98 and 1,859.50 is: 2,789.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.01 : 5,420.98 = 1,859.50 : x
  2. Step 2: Convert to fraction form
    3,614.01/5,420.98 = 1,859.50/x
  3. Step 3: Cross multiply
    3,614.01x = 5,420.98 × 1,859.50
  4. Step 4: Simplify right side
    3,614.01x = 10,080,312.31
  5. Step 5: Solve for x
    x = 10,080,312.31/3,614.01
  6. Step 6: Final answer
    x = 2,789.23

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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.