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Finding the Fourth Proportional to 7,008.93, 9,672.62 and 3,865.32

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Solution

The fourth proportional to 7,008.93, 9,672.62 and 3,865.32 is: 5,334.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.93 : 9,672.62 = 3,865.32 : x
  2. Step 2: Convert to fraction form
    7,008.93/9,672.62 = 3,865.32/x
  3. Step 3: Cross multiply
    7,008.93x = 9,672.62 × 3,865.32
  4. Step 4: Simplify right side
    7,008.93x = 37,387,752.21
  5. Step 5: Solve for x
    x = 37,387,752.21/7,008.93
  6. Step 6: Final answer
    x = 5,334.30

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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.