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Finding the Fourth Proportional to 5,879.99, 8,788.15 and 5,412.98

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Solution

The fourth proportional to 5,879.99, 8,788.15 and 5,412.98 is: 8,090.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.99 : 8,788.15 = 5,412.98 : x
  2. Step 2: Convert to fraction form
    5,879.99/8,788.15 = 5,412.98/x
  3. Step 3: Cross multiply
    5,879.99x = 8,788.15 × 5,412.98
  4. Step 4: Simplify right side
    5,879.99x = 47,570,080.19
  5. Step 5: Solve for x
    x = 47,570,080.19/5,879.99
  6. Step 6: Final answer
    x = 8,090.16

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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.