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Finding the Fourth Proportional to 6,719.58, 9,259.92 and 5,042.88

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Solution

The fourth proportional to 6,719.58, 9,259.92 and 5,042.88 is: 6,949.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,719.58 : 9,259.92 = 5,042.88 : x
  2. Step 2: Convert to fraction form
    6,719.58/9,259.92 = 5,042.88/x
  3. Step 3: Cross multiply
    6,719.58x = 9,259.92 × 5,042.88
  4. Step 4: Simplify right side
    6,719.58x = 46,696,665.37
  5. Step 5: Solve for x
    x = 46,696,665.37/6,719.58
  6. Step 6: Final answer
    x = 6,949.34

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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.