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Finding the Fourth Proportional to 9,368.60, 14,052.90 and 8,216.60

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Solution

The fourth proportional to 9,368.60, 14,052.90 and 8,216.60 is: 12,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,368.60 : 14,052.90 = 8,216.60 : x
  2. Step 2: Convert to fraction form
    9,368.60/14,052.90 = 8,216.60/x
  3. Step 3: Cross multiply
    9,368.60x = 14,052.90 × 8,216.60
  4. Step 4: Simplify right side
    9,368.60x = 115,467,058.14
  5. Step 5: Solve for x
    x = 115,467,058.14/9,368.60
  6. Step 6: Final answer
    x = 12,324.90

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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.