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Finding the Fourth Proportional to 8,911.65, 13,367.18 and 4,235.01

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Solution

The fourth proportional to 8,911.65, 13,367.18 and 4,235.01 is: 6,352.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.65 : 13,367.18 = 4,235.01 : x
  2. Step 2: Convert to fraction form
    8,911.65/13,367.18 = 4,235.01/x
  3. Step 3: Cross multiply
    8,911.65x = 13,367.18 × 4,235.01
  4. Step 4: Simplify right side
    8,911.65x = 56,610,119.80
  5. Step 5: Solve for x
    x = 56,610,119.80/8,911.65
  6. Step 6: Final answer
    x = 6,352.37

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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.