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Finding the Fourth Proportional to 12,358.96, 18,525.48 and 4,562.80

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Solution

The fourth proportional to 12,358.96, 18,525.48 and 4,562.80 is: 6,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358.96 : 18,525.48 = 4,562.80 : x
  2. Step 2: Convert to fraction form
    12,358.96/18,525.48 = 4,562.80/x
  3. Step 3: Cross multiply
    12,358.96x = 18,525.48 × 4,562.80
  4. Step 4: Simplify right side
    12,358.96x = 84,528,060.14
  5. Step 5: Solve for x
    x = 84,528,060.14/12,358.96
  6. Step 6: Final answer
    x = 6,839.42

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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.