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Finding the Fourth Proportional to 5,289.59, 7,934.40 and 1,592.21

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Solution

The fourth proportional to 5,289.59, 7,934.40 and 1,592.21 is: 2,388.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.59 : 7,934.40 = 1,592.21 : x
  2. Step 2: Convert to fraction form
    5,289.59/7,934.40 = 1,592.21/x
  3. Step 3: Cross multiply
    5,289.59x = 7,934.40 × 1,592.21
  4. Step 4: Simplify right side
    5,289.59x = 12,633,231.02
  5. Step 5: Solve for x
    x = 12,633,231.02/5,289.59
  6. Step 6: Final answer
    x = 2,388.32

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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.