Home / 7,009.21-9,672.69-3,822.50

Finding the Fourth Proportional to 7,009.21, 9,672.69 and 3,822.50

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Solution

The fourth proportional to 7,009.21, 9,672.69 and 3,822.50 is: 5,275.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,009.21 : 9,672.69 = 3,822.50 : x
  2. Step 2: Convert to fraction form
    7,009.21/9,672.69 = 3,822.50/x
  3. Step 3: Cross multiply
    7,009.21x = 9,672.69 × 3,822.50
  4. Step 4: Simplify right side
    7,009.21x = 36,973,874.54
  5. Step 5: Solve for x
    x = 36,973,874.54/7,009.21
  6. Step 6: Final answer
    x = 5,275.04

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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.