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Finding the Fourth Proportional to 8,575.60, 12,849.60 and 4,866.80

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Solution

The fourth proportional to 8,575.60, 12,849.60 and 4,866.80 is: 7,292.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,575.60 : 12,849.60 = 4,866.80 : x
  2. Step 2: Convert to fraction form
    8,575.60/12,849.60 = 4,866.80/x
  3. Step 3: Cross multiply
    8,575.60x = 12,849.60 × 4,866.80
  4. Step 4: Simplify right side
    8,575.60x = 62,536,433.28
  5. Step 5: Solve for x
    x = 62,536,433.28/8,575.60
  6. Step 6: Final answer
    x = 7,292.37

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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.