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Finding the Fourth Proportional to 5,289.99, 7,896.36 and 4,904.54

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Solution

The fourth proportional to 5,289.99, 7,896.36 and 4,904.54 is: 7,320.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.99 : 7,896.36 = 4,904.54 : x
  2. Step 2: Convert to fraction form
    5,289.99/7,896.36 = 4,904.54/x
  3. Step 3: Cross multiply
    5,289.99x = 7,896.36 × 4,904.54
  4. Step 4: Simplify right side
    5,289.99x = 38,727,973.99
  5. Step 5: Solve for x
    x = 38,727,973.99/5,289.99
  6. Step 6: Final answer
    x = 7,320.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.