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Finding the Fourth Proportional to 14,291.76, 19,723.34 and 8,626.41

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Solution

The fourth proportional to 14,291.76, 19,723.34 and 8,626.41 is: 11,904.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,291.76 : 19,723.34 = 8,626.41 : x
  2. Step 2: Convert to fraction form
    14,291.76/19,723.34 = 8,626.41/x
  3. Step 3: Cross multiply
    14,291.76x = 19,723.34 × 8,626.41
  4. Step 4: Simplify right side
    14,291.76x = 170,141,574.28
  5. Step 5: Solve for x
    x = 170,141,574.28/14,291.76
  6. Step 6: Final answer
    x = 11,904.87

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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.