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Finding the Fourth Proportional to 21,711.38, 32,567.06 and 5,295.38

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Solution

The fourth proportional to 21,711.38, 32,567.06 and 5,295.38 is: 7,943.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,711.38 : 32,567.06 = 5,295.38 : x
  2. Step 2: Convert to fraction form
    21,711.38/32,567.06 = 5,295.38/x
  3. Step 3: Cross multiply
    21,711.38x = 32,567.06 × 5,295.38
  4. Step 4: Simplify right side
    21,711.38x = 172,454,808.59
  5. Step 5: Solve for x
    x = 172,454,808.59/21,711.38
  6. Step 6: Final answer
    x = 7,943.06

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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.