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Finding the Fourth Proportional to 5,710.88, 8,520.24 and 5,087.58

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Solution

The fourth proportional to 5,710.88, 8,520.24 and 5,087.58 is: 7,590.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,710.88 : 8,520.24 = 5,087.58 : x
  2. Step 2: Convert to fraction form
    5,710.88/8,520.24 = 5,087.58/x
  3. Step 3: Cross multiply
    5,710.88x = 8,520.24 × 5,087.58
  4. Step 4: Simplify right side
    5,710.88x = 43,347,402.62
  5. Step 5: Solve for x
    x = 43,347,402.62/5,710.88
  6. Step 6: Final answer
    x = 7,590.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.