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Finding the Fourth Proportional to 10,994.40, 16,501.20 and 8,797.60

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Solution

The fourth proportional to 10,994.40, 16,501.20 and 8,797.60 is: 13,204.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,994.40 : 16,501.20 = 8,797.60 : x
  2. Step 2: Convert to fraction form
    10,994.40/16,501.20 = 8,797.60/x
  3. Step 3: Cross multiply
    10,994.40x = 16,501.20 × 8,797.60
  4. Step 4: Simplify right side
    10,994.40x = 145,170,957.12
  5. Step 5: Solve for x
    x = 145,170,957.12/10,994.40
  6. Step 6: Final answer
    x = 13,204.08

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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.