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Finding the Fourth Proportional to 6,606.76, 9,112.08 and 5,615.32

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Solution

The fourth proportional to 6,606.76, 9,112.08 and 5,615.32 is: 7,744.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,606.76 : 9,112.08 = 5,615.32 : x
  2. Step 2: Convert to fraction form
    6,606.76/9,112.08 = 5,615.32/x
  3. Step 3: Cross multiply
    6,606.76x = 9,112.08 × 5,615.32
  4. Step 4: Simplify right side
    6,606.76x = 51,167,245.07
  5. Step 5: Solve for x
    x = 51,167,245.07/6,606.76
  6. Step 6: Final answer
    x = 7,744.68

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Half scale
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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.