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Finding the Fourth Proportional to 10,745.76, 16,118.65 and 4,508.71

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Solution

The fourth proportional to 10,745.76, 16,118.65 and 4,508.71 is: 6,763.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,745.76 : 16,118.65 = 4,508.71 : x
  2. Step 2: Convert to fraction form
    10,745.76/16,118.65 = 4,508.71/x
  3. Step 3: Cross multiply
    10,745.76x = 16,118.65 × 4,508.71
  4. Step 4: Simplify right side
    10,745.76x = 72,674,349.09
  5. Step 5: Solve for x
    x = 72,674,349.09/10,745.76
  6. Step 6: Final answer
    x = 6,763.07

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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.