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Finding the Fourth Proportional to 7,179.05, 9,904.29 and 5,295.12

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Solution

The fourth proportional to 7,179.05, 9,904.29 and 5,295.12 is: 7,305.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.05 : 9,904.29 = 5,295.12 : x
  2. Step 2: Convert to fraction form
    7,179.05/9,904.29 = 5,295.12/x
  3. Step 3: Cross multiply
    7,179.05x = 9,904.29 × 5,295.12
  4. Step 4: Simplify right side
    7,179.05x = 52,444,347.07
  5. Step 5: Solve for x
    x = 52,444,347.07/7,179.05
  6. Step 6: Final answer
    x = 7,305.19

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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.