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Finding the Fourth Proportional to 17,688.82, 24,409.08 and 9,731.46

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Solution

The fourth proportional to 17,688.82, 24,409.08 and 9,731.46 is: 13,428.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,688.82 : 24,409.08 = 9,731.46 : x
  2. Step 2: Convert to fraction form
    17,688.82/24,409.08 = 9,731.46/x
  3. Step 3: Cross multiply
    17,688.82x = 24,409.08 × 9,731.46
  4. Step 4: Simplify right side
    17,688.82x = 237,535,985.66
  5. Step 5: Solve for x
    x = 237,535,985.66/17,688.82
  6. Step 6: Final answer
    x = 13,428.59

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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.