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Finding the Fourth Proportional to 10,998.70, 16,461.60 and 10,998.70

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Solution

The fourth proportional to 10,998.70, 16,461.60 and 10,998.70 is: 16,461.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.70 : 16,461.60 = 10,998.70 : x
  2. Step 2: Convert to fraction form
    10,998.70/16,461.60 = 10,998.70/x
  3. Step 3: Cross multiply
    10,998.70x = 16,461.60 × 10,998.70
  4. Step 4: Simplify right side
    10,998.70x = 181,056,199.92
  5. Step 5: Solve for x
    x = 181,056,199.92/10,998.70
  6. Step 6: Final answer
    x = 16,461.60

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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.