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Finding the Fourth Proportional to 18,302.96, 25,239.60 and 14,934.96

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Solution

The fourth proportional to 18,302.96, 25,239.60 and 14,934.96 is: 20,595.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302.96 : 25,239.60 = 14,934.96 : x
  2. Step 2: Convert to fraction form
    18,302.96/25,239.60 = 14,934.96/x
  3. Step 3: Cross multiply
    18,302.96x = 25,239.60 × 14,934.96
  4. Step 4: Simplify right side
    18,302.96x = 376,952,416.42
  5. Step 5: Solve for x
    x = 376,952,416.42/18,302.96
  6. Step 6: Final answer
    x = 20,595.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.