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Finding the Fourth Proportional to 8,710.56, 12,021.16 and 4,933.68

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Solution

The fourth proportional to 8,710.56, 12,021.16 and 4,933.68 is: 6,808.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.56 : 12,021.16 = 4,933.68 : x
  2. Step 2: Convert to fraction form
    8,710.56/12,021.16 = 4,933.68/x
  3. Step 3: Cross multiply
    8,710.56x = 12,021.16 × 4,933.68
  4. Step 4: Simplify right side
    8,710.56x = 59,308,556.67
  5. Step 5: Solve for x
    x = 59,308,556.67/8,710.56
  6. Step 6: Final answer
    x = 6,808.81

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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.