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Finding the Fourth Proportional to 12,354.48, 18,530.88 and 4,962.24

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Solution

The fourth proportional to 12,354.48, 18,530.88 and 4,962.24 is: 7,443.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.48 : 18,530.88 = 4,962.24 : x
  2. Step 2: Convert to fraction form
    12,354.48/18,530.88 = 4,962.24/x
  3. Step 3: Cross multiply
    12,354.48x = 18,530.88 × 4,962.24
  4. Step 4: Simplify right side
    12,354.48x = 91,954,673.97
  5. Step 5: Solve for x
    x = 91,954,673.97/12,354.48
  6. Step 6: Final answer
    x = 7,443.02

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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.