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Finding the Fourth Proportional to 18,378.60, 27,567.90 and 16,337.40

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Solution

The fourth proportional to 18,378.60, 27,567.90 and 16,337.40 is: 24,506.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.60 : 27,567.90 = 16,337.40 : x
  2. Step 2: Convert to fraction form
    18,378.60/27,567.90 = 16,337.40/x
  3. Step 3: Cross multiply
    18,378.60x = 27,567.90 × 16,337.40
  4. Step 4: Simplify right side
    18,378.60x = 450,387,809.46
  5. Step 5: Solve for x
    x = 450,387,809.46/18,378.60
  6. Step 6: Final answer
    x = 24,506.10

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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.