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Finding the Fourth Proportional to 5,889.61, 8,815.18 and 4,329.20

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Solution

The fourth proportional to 5,889.61, 8,815.18 and 4,329.20 is: 6,479.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,889.61 : 8,815.18 = 4,329.20 : x
  2. Step 2: Convert to fraction form
    5,889.61/8,815.18 = 4,329.20/x
  3. Step 3: Cross multiply
    5,889.61x = 8,815.18 × 4,329.20
  4. Step 4: Simplify right side
    5,889.61x = 38,162,677.26
  5. Step 5: Solve for x
    x = 38,162,677.26/5,889.61
  6. Step 6: Final answer
    x = 6,479.67

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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.