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Finding the Fourth Proportional to 5,266.71, 7,268.90 and 4,005.74

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Solution

The fourth proportional to 5,266.71, 7,268.90 and 4,005.74 is: 5,528.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,266.71 : 7,268.90 = 4,005.74 : x
  2. Step 2: Convert to fraction form
    5,266.71/7,268.90 = 4,005.74/x
  3. Step 3: Cross multiply
    5,266.71x = 7,268.90 × 4,005.74
  4. Step 4: Simplify right side
    5,266.71x = 29,117,267.11
  5. Step 5: Solve for x
    x = 29,117,267.11/5,266.71
  6. Step 6: Final answer
    x = 5,528.55

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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.