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Finding the Fourth Proportional to 14,806.92, 20,430.18 and 8,840.52

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Solution

The fourth proportional to 14,806.92, 20,430.18 and 8,840.52 is: 12,197.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,806.92 : 20,430.18 = 8,840.52 : x
  2. Step 2: Convert to fraction form
    14,806.92/20,430.18 = 8,840.52/x
  3. Step 3: Cross multiply
    14,806.92x = 20,430.18 × 8,840.52
  4. Step 4: Simplify right side
    14,806.92x = 180,613,414.89
  5. Step 5: Solve for x
    x = 180,613,414.89/14,806.92
  6. Step 6: Final answer
    x = 12,197.91

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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.