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Finding the Fourth Proportional to 2,007.95, 3,011.96 and 837.60

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Solution

The fourth proportional to 2,007.95, 3,011.96 and 837.60 is: 1,256.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.95 : 3,011.96 = 837.60 : x
  2. Step 2: Convert to fraction form
    2,007.95/3,011.96 = 837.60/x
  3. Step 3: Cross multiply
    2,007.95x = 3,011.96 × 837.60
  4. Step 4: Simplify right side
    2,007.95x = 2,522,813.51
  5. Step 5: Solve for x
    x = 2,522,813.51/2,007.95
  6. Step 6: Final answer
    x = 1,256.42

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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.