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Finding the Fourth Proportional to 11,115.70, 16,673.55 and 10,482.10

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Solution

The fourth proportional to 11,115.70, 16,673.55 and 10,482.10 is: 15,723.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.70 : 16,673.55 = 10,482.10 : x
  2. Step 2: Convert to fraction form
    11,115.70/16,673.55 = 10,482.10/x
  3. Step 3: Cross multiply
    11,115.70x = 16,673.55 × 10,482.10
  4. Step 4: Simplify right side
    11,115.70x = 174,773,818.46
  5. Step 5: Solve for x
    x = 174,773,818.46/11,115.70
  6. Step 6: Final answer
    x = 15,723.15

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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.