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Finding the Fourth Proportional to 13,710.96, 20,566.20 and 4,476.96

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Solution

The fourth proportional to 13,710.96, 20,566.20 and 4,476.96 is: 6,715.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710.96 : 20,566.20 = 4,476.96 : x
  2. Step 2: Convert to fraction form
    13,710.96/20,566.20 = 4,476.96/x
  3. Step 3: Cross multiply
    13,710.96x = 20,566.20 × 4,476.96
  4. Step 4: Simplify right side
    13,710.96x = 92,074,054.75
  5. Step 5: Solve for x
    x = 92,074,054.75/13,710.96
  6. Step 6: Final answer
    x = 6,715.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.