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Finding the Fourth Proportional to 17,783.28, 26,672.76 and 7,393.68

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Solution

The fourth proportional to 17,783.28, 26,672.76 and 7,393.68 is: 11,089.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,783.28 : 26,672.76 = 7,393.68 : x
  2. Step 2: Convert to fraction form
    17,783.28/26,672.76 = 7,393.68/x
  3. Step 3: Cross multiply
    17,783.28x = 26,672.76 × 7,393.68
  4. Step 4: Simplify right side
    17,783.28x = 197,209,852.16
  5. Step 5: Solve for x
    x = 197,209,852.16/17,783.28
  6. Step 6: Final answer
    x = 11,089.62

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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.