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Finding the Fourth Proportional to 5,886.71, 8,821.21 and 5,331.05

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Solution

The fourth proportional to 5,886.71, 8,821.21 and 5,331.05 is: 7,988.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,886.71 : 8,821.21 = 5,331.05 : x
  2. Step 2: Convert to fraction form
    5,886.71/8,821.21 = 5,331.05/x
  3. Step 3: Cross multiply
    5,886.71x = 8,821.21 × 5,331.05
  4. Step 4: Simplify right side
    5,886.71x = 47,026,267.46
  5. Step 5: Solve for x
    x = 47,026,267.46/5,886.71
  6. Step 6: Final answer
    x = 7,988.56

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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.