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Finding the Fourth Proportional to 6,903.54, 10,392.66 and 6,291.18

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Solution

The fourth proportional to 6,903.54, 10,392.66 and 6,291.18 is: 9,470.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,903.54 : 10,392.66 = 6,291.18 : x
  2. Step 2: Convert to fraction form
    6,903.54/10,392.66 = 6,291.18/x
  3. Step 3: Cross multiply
    6,903.54x = 10,392.66 × 6,291.18
  4. Step 4: Simplify right side
    6,903.54x = 65,382,094.74
  5. Step 5: Solve for x
    x = 65,382,094.74/6,903.54
  6. Step 6: Final answer
    x = 9,470.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.