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Finding the Fourth Proportional to 12,560.90, 17,332.99 and 6,895.49

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Solution

The fourth proportional to 12,560.90, 17,332.99 and 6,895.49 is: 9,515.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,560.90 : 17,332.99 = 6,895.49 : x
  2. Step 2: Convert to fraction form
    12,560.90/17,332.99 = 6,895.49/x
  3. Step 3: Cross multiply
    12,560.90x = 17,332.99 × 6,895.49
  4. Step 4: Simplify right side
    12,560.90x = 119,519,355.31
  5. Step 5: Solve for x
    x = 119,519,355.31/12,560.90
  6. Step 6: Final answer
    x = 9,515.19

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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.