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Finding the Fourth Proportional to 18,429.60, 24,899.40 and 18,429.60

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Solution

The fourth proportional to 18,429.60, 24,899.40 and 18,429.60 is: 24,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.60 : 24,899.40 = 18,429.60 : x
  2. Step 2: Convert to fraction form
    18,429.60/24,899.40 = 18,429.60/x
  3. Step 3: Cross multiply
    18,429.60x = 24,899.40 × 18,429.60
  4. Step 4: Simplify right side
    18,429.60x = 458,885,982.24
  5. Step 5: Solve for x
    x = 458,885,982.24/18,429.60
  6. Step 6: Final answer
    x = 24,899.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.