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Finding the Fourth Proportional to 12,656.95, 17,471.70 and 7,625.48

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Solution

The fourth proportional to 12,656.95, 17,471.70 and 7,625.48 is: 10,526.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.95 : 17,471.70 = 7,625.48 : x
  2. Step 2: Convert to fraction form
    12,656.95/17,471.70 = 7,625.48/x
  3. Step 3: Cross multiply
    12,656.95x = 17,471.70 × 7,625.48
  4. Step 4: Simplify right side
    12,656.95x = 133,230,011.56
  5. Step 5: Solve for x
    x = 133,230,011.56/12,656.95
  6. Step 6: Final answer
    x = 10,526.24

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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.