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Finding the Fourth Proportional to 7,008.94, 9,672.34 and 3,865.33

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Solution

The fourth proportional to 7,008.94, 9,672.34 and 3,865.33 is: 5,334.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.94 : 9,672.34 = 3,865.33 : x
  2. Step 2: Convert to fraction form
    7,008.94/9,672.34 = 3,865.33/x
  3. Step 3: Cross multiply
    7,008.94x = 9,672.34 × 3,865.33
  4. Step 4: Simplify right side
    7,008.94x = 37,386,752.13
  5. Step 5: Solve for x
    x = 37,386,752.13/7,008.94
  6. Step 6: Final answer
    x = 5,334.15

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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.