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Finding the Fourth Proportional to 5,266.85, 7,928.82 and 4,807.58

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Solution

The fourth proportional to 5,266.85, 7,928.82 and 4,807.58 is: 7,237.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,266.85 : 7,928.82 = 4,807.58 : x
  2. Step 2: Convert to fraction form
    5,266.85/7,928.82 = 4,807.58/x
  3. Step 3: Cross multiply
    5,266.85x = 7,928.82 × 4,807.58
  4. Step 4: Simplify right side
    5,266.85x = 38,118,396.81
  5. Step 5: Solve for x
    x = 38,118,396.81/5,266.85
  6. Step 6: Final answer
    x = 7,237.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.