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Finding the Fourth Proportional to 14,810.78, 20,404.13 and 10,326.38

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Solution

The fourth proportional to 14,810.78, 20,404.13 and 10,326.38 is: 14,226.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,810.78 : 20,404.13 = 10,326.38 : x
  2. Step 2: Convert to fraction form
    14,810.78/20,404.13 = 10,326.38/x
  3. Step 3: Cross multiply
    14,810.78x = 20,404.13 × 10,326.38
  4. Step 4: Simplify right side
    14,810.78x = 210,700,799.95
  5. Step 5: Solve for x
    x = 210,700,799.95/14,810.78
  6. Step 6: Final answer
    x = 14,226.18

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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.