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Finding the Fourth Proportional to 14,646.92, 20,214.90 and 8,360.84

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Solution

The fourth proportional to 14,646.92, 20,214.90 and 8,360.84 is: 11,539.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,646.92 : 20,214.90 = 8,360.84 : x
  2. Step 2: Convert to fraction form
    14,646.92/20,214.90 = 8,360.84/x
  3. Step 3: Cross multiply
    14,646.92x = 20,214.90 × 8,360.84
  4. Step 4: Simplify right side
    14,646.92x = 169,013,544.52
  5. Step 5: Solve for x
    x = 169,013,544.52/14,646.92
  6. Step 6: Final answer
    x = 11,539.19

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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.