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Finding the Fourth Proportional to 9,806.60, 14,688.30 and 5,904.20

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Solution

The fourth proportional to 9,806.60, 14,688.30 and 5,904.20 is: 8,843.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,806.60 : 14,688.30 = 5,904.20 : x
  2. Step 2: Convert to fraction form
    9,806.60/14,688.30 = 5,904.20/x
  3. Step 3: Cross multiply
    9,806.60x = 14,688.30 × 5,904.20
  4. Step 4: Simplify right side
    9,806.60x = 86,722,660.86
  5. Step 5: Solve for x
    x = 86,722,660.86/9,806.60
  6. Step 6: Final answer
    x = 8,843.30

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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.