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Finding the Fourth Proportional to 11,131.70, 16,673.49 and 10,477.40

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Solution

The fourth proportional to 11,131.70, 16,673.49 and 10,477.40 is: 15,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.70 : 16,673.49 = 10,477.40 : x
  2. Step 2: Convert to fraction form
    11,131.70/16,673.49 = 10,477.40/x
  3. Step 3: Cross multiply
    11,131.70x = 16,673.49 × 10,477.40
  4. Step 4: Simplify right side
    11,131.70x = 174,694,740.76
  5. Step 5: Solve for x
    x = 174,694,740.76/11,131.70
  6. Step 6: Final answer
    x = 15,693.45

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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.