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Finding the Fourth Proportional to 7,032.99, 9,705.49 and 3,889.17

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Solution

The fourth proportional to 7,032.99, 9,705.49 and 3,889.17 is: 5,367.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,032.99 : 9,705.49 = 3,889.17 : x
  2. Step 2: Convert to fraction form
    7,032.99/9,705.49 = 3,889.17/x
  3. Step 3: Cross multiply
    7,032.99x = 9,705.49 × 3,889.17
  4. Step 4: Simplify right side
    7,032.99x = 37,746,300.54
  5. Step 5: Solve for x
    x = 37,746,300.54/7,032.99
  6. Step 6: Final answer
    x = 5,367.03

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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.