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Finding the Fourth Proportional to 5,866.16, 8,816.45 and 4,885.25

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Solution

The fourth proportional to 5,866.16, 8,816.45 and 4,885.25 is: 7,342.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,866.16 : 8,816.45 = 4,885.25 : x
  2. Step 2: Convert to fraction form
    5,866.16/8,816.45 = 4,885.25/x
  3. Step 3: Cross multiply
    5,866.16x = 8,816.45 × 4,885.25
  4. Step 4: Simplify right side
    5,866.16x = 43,070,493.85
  5. Step 5: Solve for x
    x = 43,070,493.85/5,866.16
  6. Step 6: Final answer
    x = 7,342.20

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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.