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Finding the Fourth Proportional to 13,597.98, 20,377.98 and 7,344.51

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Solution

The fourth proportional to 13,597.98, 20,377.98 and 7,344.51 is: 11,006.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,597.98 : 20,377.98 = 7,344.51 : x
  2. Step 2: Convert to fraction form
    13,597.98/20,377.98 = 7,344.51/x
  3. Step 3: Cross multiply
    13,597.98x = 20,377.98 × 7,344.51
  4. Step 4: Simplify right side
    13,597.98x = 149,666,201.47
  5. Step 5: Solve for x
    x = 149,666,201.47/13,597.98
  6. Step 6: Final answer
    x = 11,006.51

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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.