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Finding the Fourth Proportional to 5,875.97, 8,811.77 and 1,979.46

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Solution

The fourth proportional to 5,875.97, 8,811.77 and 1,979.46 is: 2,968.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,875.97 : 8,811.77 = 1,979.46 : x
  2. Step 2: Convert to fraction form
    5,875.97/8,811.77 = 1,979.46/x
  3. Step 3: Cross multiply
    5,875.97x = 8,811.77 × 1,979.46
  4. Step 4: Simplify right side
    5,875.97x = 17,442,536.35
  5. Step 5: Solve for x
    x = 17,442,536.35/5,875.97
  6. Step 6: Final answer
    x = 2,968.45

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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.