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Finding the Fourth Proportional to 12,230.60, 16,878.20 and 6,925.10

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Solution

The fourth proportional to 12,230.60, 16,878.20 and 6,925.10 is: 9,556.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.60 : 16,878.20 = 6,925.10 : x
  2. Step 2: Convert to fraction form
    12,230.60/16,878.20 = 6,925.10/x
  3. Step 3: Cross multiply
    12,230.60x = 16,878.20 × 6,925.10
  4. Step 4: Simplify right side
    12,230.60x = 116,883,222.82
  5. Step 5: Solve for x
    x = 116,883,222.82/12,230.60
  6. Step 6: Final answer
    x = 9,556.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.