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Finding the Fourth Proportional to 7,670.37, 10,615.55 and 7,486.37

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Solution

The fourth proportional to 7,670.37, 10,615.55 and 7,486.37 is: 10,360.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,670.37 : 10,615.55 = 7,486.37 : x
  2. Step 2: Convert to fraction form
    7,670.37/10,615.55 = 7,486.37/x
  3. Step 3: Cross multiply
    7,670.37x = 10,615.55 × 7,486.37
  4. Step 4: Simplify right side
    7,670.37x = 79,471,844.54
  5. Step 5: Solve for x
    x = 79,471,844.54/7,670.37
  6. Step 6: Final answer
    x = 10,360.89

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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.