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Finding the Fourth Proportional to 6,875.66, 9,488.40 and 3,850.94

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Solution

The fourth proportional to 6,875.66, 9,488.40 and 3,850.94 is: 5,314.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.66 : 9,488.40 = 3,850.94 : x
  2. Step 2: Convert to fraction form
    6,875.66/9,488.40 = 3,850.94/x
  3. Step 3: Cross multiply
    6,875.66x = 9,488.40 × 3,850.94
  4. Step 4: Simplify right side
    6,875.66x = 36,539,259.10
  5. Step 5: Solve for x
    x = 36,539,259.10/6,875.66
  6. Step 6: Final answer
    x = 5,314.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.