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Finding the Fourth Proportional to 9,393.66, 12,945.02 and 7,006.39

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Solution

The fourth proportional to 9,393.66, 12,945.02 and 7,006.39 is: 9,655.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,393.66 : 12,945.02 = 7,006.39 : x
  2. Step 2: Convert to fraction form
    9,393.66/12,945.02 = 7,006.39/x
  3. Step 3: Cross multiply
    9,393.66x = 12,945.02 × 7,006.39
  4. Step 4: Simplify right side
    9,393.66x = 90,697,791.28
  5. Step 5: Solve for x
    x = 90,697,791.28/9,393.66
  6. Step 6: Final answer
    x = 9,655.21

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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.