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Finding the Fourth Proportional to 8,483.60, 12,715.68 and 4,579.82

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Solution

The fourth proportional to 8,483.60, 12,715.68 and 4,579.82 is: 6,864.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,483.60 : 12,715.68 = 4,579.82 : x
  2. Step 2: Convert to fraction form
    8,483.60/12,715.68 = 4,579.82/x
  3. Step 3: Cross multiply
    8,483.60x = 12,715.68 × 4,579.82
  4. Step 4: Simplify right side
    8,483.60x = 58,235,525.58
  5. Step 5: Solve for x
    x = 58,235,525.58/8,483.60
  6. Step 6: Final answer
    x = 6,864.48

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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.