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Finding the Fourth Proportional to 12,357.92, 18,535.80 and 4,566.80

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Solution

The fourth proportional to 12,357.92, 18,535.80 and 4,566.80 is: 6,849.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.92 : 18,535.80 = 4,566.80 : x
  2. Step 2: Convert to fraction form
    12,357.92/18,535.80 = 4,566.80/x
  3. Step 3: Cross multiply
    12,357.92x = 18,535.80 × 4,566.80
  4. Step 4: Simplify right side
    12,357.92x = 84,649,291.44
  5. Step 5: Solve for x
    x = 84,649,291.44/12,357.92
  6. Step 6: Final answer
    x = 6,849.80

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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.