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Finding the Fourth Proportional to 9,006.04, 13,490.48 and 7,968.72

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Solution

The fourth proportional to 9,006.04, 13,490.48 and 7,968.72 is: 11,936.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,006.04 : 13,490.48 = 7,968.72 : x
  2. Step 2: Convert to fraction form
    9,006.04/13,490.48 = 7,968.72/x
  3. Step 3: Cross multiply
    9,006.04x = 13,490.48 × 7,968.72
  4. Step 4: Simplify right side
    9,006.04x = 107,501,857.79
  5. Step 5: Solve for x
    x = 107,501,857.79/9,006.04
  6. Step 6: Final answer
    x = 11,936.64

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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.