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Finding the Fourth Proportional to 17,957.72, 26,932.53 and 6,860.45

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Solution

The fourth proportional to 17,957.72, 26,932.53 and 6,860.45 is: 10,289.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,957.72 : 26,932.53 = 6,860.45 : x
  2. Step 2: Convert to fraction form
    17,957.72/26,932.53 = 6,860.45/x
  3. Step 3: Cross multiply
    17,957.72x = 26,932.53 × 6,860.45
  4. Step 4: Simplify right side
    17,957.72x = 184,769,275.44
  5. Step 5: Solve for x
    x = 184,769,275.44/17,957.72
  6. Step 6: Final answer
    x = 10,289.13

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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.