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Finding the Fourth Proportional to 17,697.61, 26,535.28 and 8,331.99

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Solution

The fourth proportional to 17,697.61, 26,535.28 and 8,331.99 is: 12,492.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,697.61 : 26,535.28 = 8,331.99 : x
  2. Step 2: Convert to fraction form
    17,697.61/26,535.28 = 8,331.99/x
  3. Step 3: Cross multiply
    17,697.61x = 26,535.28 × 8,331.99
  4. Step 4: Simplify right side
    17,697.61x = 221,091,687.61
  5. Step 5: Solve for x
    x = 221,091,687.61/17,697.61
  6. Step 6: Final answer
    x = 12,492.74

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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.