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Finding the Fourth Proportional to 15,907.74, 21,952.73 and 8,834.18

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Solution

The fourth proportional to 15,907.74, 21,952.73 and 8,834.18 is: 12,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,907.74 : 21,952.73 = 8,834.18 : x
  2. Step 2: Convert to fraction form
    15,907.74/21,952.73 = 8,834.18/x
  3. Step 3: Cross multiply
    15,907.74x = 21,952.73 × 8,834.18
  4. Step 4: Simplify right side
    15,907.74x = 193,934,368.31
  5. Step 5: Solve for x
    x = 193,934,368.31/15,907.74
  6. Step 6: Final answer
    x = 12,191.20

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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.