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Finding the Fourth Proportional to 16,952.97, 25,430.06 and 7,078.66

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Solution

The fourth proportional to 16,952.97, 25,430.06 and 7,078.66 is: 10,618.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,952.97 : 25,430.06 = 7,078.66 : x
  2. Step 2: Convert to fraction form
    16,952.97/25,430.06 = 7,078.66/x
  3. Step 3: Cross multiply
    16,952.97x = 25,430.06 × 7,078.66
  4. Step 4: Simplify right side
    16,952.97x = 180,010,748.52
  5. Step 5: Solve for x
    x = 180,010,748.52/16,952.97
  6. Step 6: Final answer
    x = 10,618.24

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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.