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Finding the Fourth Proportional to 17,688.31, 26,532.48 and 5,208.48

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Solution

The fourth proportional to 17,688.31, 26,532.48 and 5,208.48 is: 7,812.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,688.31 : 26,532.48 = 5,208.48 : x
  2. Step 2: Convert to fraction form
    17,688.31/26,532.48 = 5,208.48/x
  3. Step 3: Cross multiply
    17,688.31x = 26,532.48 × 5,208.48
  4. Step 4: Simplify right side
    17,688.31x = 138,193,771.79
  5. Step 5: Solve for x
    x = 138,193,771.79/17,688.31
  6. Step 6: Final answer
    x = 7,812.72

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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.