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Finding the Fourth Proportional to 12,363.75, 17,061.98 and 6,774.63

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Solution

The fourth proportional to 12,363.75, 17,061.98 and 6,774.63 is: 9,348.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,363.75 : 17,061.98 = 6,774.63 : x
  2. Step 2: Convert to fraction form
    12,363.75/17,061.98 = 6,774.63/x
  3. Step 3: Cross multiply
    12,363.75x = 17,061.98 × 6,774.63
  4. Step 4: Simplify right side
    12,363.75x = 115,588,567.69
  5. Step 5: Solve for x
    x = 115,588,567.69/12,363.75
  6. Step 6: Final answer
    x = 9,348.99

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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.