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Finding the Fourth Proportional to 2,106.59, 3,160.15 and 873.33

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Solution

The fourth proportional to 2,106.59, 3,160.15 and 873.33 is: 1,310.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.59 : 3,160.15 = 873.33 : x
  2. Step 2: Convert to fraction form
    2,106.59/3,160.15 = 873.33/x
  3. Step 3: Cross multiply
    2,106.59x = 3,160.15 × 873.33
  4. Step 4: Simplify right side
    2,106.59x = 2,759,851.62
  5. Step 5: Solve for x
    x = 2,759,851.62/2,106.59
  6. Step 6: Final answer
    x = 1,310.10

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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.