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Finding the Fourth Proportional to 19,508.15, 26,914.03 and 12,797.50

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Solution

The fourth proportional to 19,508.15, 26,914.03 and 12,797.50 is: 17,655.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,508.15 : 26,914.03 = 12,797.50 : x
  2. Step 2: Convert to fraction form
    19,508.15/26,914.03 = 12,797.50/x
  3. Step 3: Cross multiply
    19,508.15x = 26,914.03 × 12,797.50
  4. Step 4: Simplify right side
    19,508.15x = 344,432,298.93
  5. Step 5: Solve for x
    x = 344,432,298.93/19,508.15
  6. Step 6: Final answer
    x = 17,655.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.