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Finding the Fourth Proportional to 5,666.54, 7,820.00 and 3,428.82

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Solution

The fourth proportional to 5,666.54, 7,820.00 and 3,428.82 is: 4,731.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,666.54 : 7,820.00 = 3,428.82 : x
  2. Step 2: Convert to fraction form
    5,666.54/7,820.00 = 3,428.82/x
  3. Step 3: Cross multiply
    5,666.54x = 7,820.00 × 3,428.82
  4. Step 4: Simplify right side
    5,666.54x = 26,813,355.26
  5. Step 5: Solve for x
    x = 26,813,355.26/5,666.54
  6. Step 6: Final answer
    x = 4,731.88

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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.