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Finding the Fourth Proportional to 15,944.34, 22,006.98 and 9,655.50

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Solution

The fourth proportional to 15,944.34, 22,006.98 and 9,655.50 is: 13,326.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,944.34 : 22,006.98 = 9,655.50 : x
  2. Step 2: Convert to fraction form
    15,944.34/22,006.98 = 9,655.50/x
  3. Step 3: Cross multiply
    15,944.34x = 22,006.98 × 9,655.50
  4. Step 4: Simplify right side
    15,944.34x = 212,488,395.39
  5. Step 5: Solve for x
    x = 212,488,395.39/15,944.34
  6. Step 6: Final answer
    x = 13,326.89

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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.