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Finding the Fourth Proportional to 6,917.24, 9,534.64 and 4,678.30

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Solution

The fourth proportional to 6,917.24, 9,534.64 and 4,678.30 is: 6,448.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,917.24 : 9,534.64 = 4,678.30 : x
  2. Step 2: Convert to fraction form
    6,917.24/9,534.64 = 4,678.30/x
  3. Step 3: Cross multiply
    6,917.24x = 9,534.64 × 4,678.30
  4. Step 4: Simplify right side
    6,917.24x = 44,605,906.31
  5. Step 5: Solve for x
    x = 44,605,906.31/6,917.24
  6. Step 6: Final answer
    x = 6,448.51

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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.