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Finding the Fourth Proportional to 13,998.60, 20,984.52 and 9,848.16

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Solution

The fourth proportional to 13,998.60, 20,984.52 and 9,848.16 is: 14,762.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.60 : 20,984.52 = 9,848.16 : x
  2. Step 2: Convert to fraction form
    13,998.60/20,984.52 = 9,848.16/x
  3. Step 3: Cross multiply
    13,998.60x = 20,984.52 × 9,848.16
  4. Step 4: Simplify right side
    13,998.60x = 206,658,910.48
  5. Step 5: Solve for x
    x = 206,658,910.48/13,998.60
  6. Step 6: Final answer
    x = 14,762.83

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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.