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Finding the Fourth Proportional to 9,430.11, 14,115.99 and 8,030.43

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Solution

The fourth proportional to 9,430.11, 14,115.99 and 8,030.43 is: 12,020.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,430.11 : 14,115.99 = 8,030.43 : x
  2. Step 2: Convert to fraction form
    9,430.11/14,115.99 = 8,030.43/x
  3. Step 3: Cross multiply
    9,430.11x = 14,115.99 × 8,030.43
  4. Step 4: Simplify right side
    9,430.11x = 113,357,469.58
  5. Step 5: Solve for x
    x = 113,357,469.58/9,430.11
  6. Step 6: Final answer
    x = 12,020.80

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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.