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Finding the Fourth Proportional to 5,484.97, 7,564.47 and 3,888.46

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Solution

The fourth proportional to 5,484.97, 7,564.47 and 3,888.46 is: 5,362.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,484.97 : 7,564.47 = 3,888.46 : x
  2. Step 2: Convert to fraction form
    5,484.97/7,564.47 = 3,888.46/x
  3. Step 3: Cross multiply
    5,484.97x = 7,564.47 × 3,888.46
  4. Step 4: Simplify right side
    5,484.97x = 29,414,139.02
  5. Step 5: Solve for x
    x = 29,414,139.02/5,484.97
  6. Step 6: Final answer
    x = 5,362.68

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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.