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Finding the Fourth Proportional to 10,993.98, 15,174.42 and 6,281.01

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Solution

The fourth proportional to 10,993.98, 15,174.42 and 6,281.01 is: 8,669.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,993.98 : 15,174.42 = 6,281.01 : x
  2. Step 2: Convert to fraction form
    10,993.98/15,174.42 = 6,281.01/x
  3. Step 3: Cross multiply
    10,993.98x = 15,174.42 × 6,281.01
  4. Step 4: Simplify right side
    10,993.98x = 95,310,683.76
  5. Step 5: Solve for x
    x = 95,310,683.76/10,993.98
  6. Step 6: Final answer
    x = 8,669.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.