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Finding the Fourth Proportional to 9,393.40, 14,051.20 and 8,538.04

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Solution

The fourth proportional to 9,393.40, 14,051.20 and 8,538.04 is: 12,771.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,393.40 : 14,051.20 = 8,538.04 : x
  2. Step 2: Convert to fraction form
    9,393.40/14,051.20 = 8,538.04/x
  3. Step 3: Cross multiply
    9,393.40x = 14,051.20 × 8,538.04
  4. Step 4: Simplify right side
    9,393.40x = 119,969,707.65
  5. Step 5: Solve for x
    x = 119,969,707.65/9,393.40
  6. Step 6: Final answer
    x = 12,771.70

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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.