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Finding the Fourth Proportional to 8,530.60, 12,807.66 and 5,891.90

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Solution

The fourth proportional to 8,530.60, 12,807.66 and 5,891.90 is: 8,845.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.60 : 12,807.66 = 5,891.90 : x
  2. Step 2: Convert to fraction form
    8,530.60/12,807.66 = 5,891.90/x
  3. Step 3: Cross multiply
    8,530.60x = 12,807.66 × 5,891.90
  4. Step 4: Simplify right side
    8,530.60x = 75,461,451.95
  5. Step 5: Solve for x
    x = 75,461,451.95/8,530.60
  6. Step 6: Final answer
    x = 8,845.98

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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.