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Finding the Fourth Proportional to 5,788.07, 7,987.57 and 3,135.48

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Solution

The fourth proportional to 5,788.07, 7,987.57 and 3,135.48 is: 4,326.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,788.07 : 7,987.57 = 3,135.48 : x
  2. Step 2: Convert to fraction form
    5,788.07/7,987.57 = 3,135.48/x
  3. Step 3: Cross multiply
    5,788.07x = 7,987.57 × 3,135.48
  4. Step 4: Simplify right side
    5,788.07x = 25,044,837.01
  5. Step 5: Solve for x
    x = 25,044,837.01/5,788.07
  6. Step 6: Final answer
    x = 4,326.98

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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.