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Finding the Fourth Proportional to 23,677.61, 35,428.67 and 18,983.40

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Solution

The fourth proportional to 23,677.61, 35,428.67 and 18,983.40 is: 28,404.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,677.61 : 35,428.67 = 18,983.40 : x
  2. Step 2: Convert to fraction form
    23,677.61/35,428.67 = 18,983.40/x
  3. Step 3: Cross multiply
    23,677.61x = 35,428.67 × 18,983.40
  4. Step 4: Simplify right side
    23,677.61x = 672,556,519.16
  5. Step 5: Solve for x
    x = 672,556,519.16/23,677.61
  6. Step 6: Final answer
    x = 28,404.75

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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.