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Finding the Fourth Proportional to 21,641.57, 32,459.09 and 6,848.56

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Solution

The fourth proportional to 21,641.57, 32,459.09 and 6,848.56 is: 10,271.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,641.57 : 32,459.09 = 6,848.56 : x
  2. Step 2: Convert to fraction form
    21,641.57/32,459.09 = 6,848.56/x
  3. Step 3: Cross multiply
    21,641.57x = 32,459.09 × 6,848.56
  4. Step 4: Simplify right side
    21,641.57x = 222,298,025.41
  5. Step 5: Solve for x
    x = 222,298,025.41/21,641.57
  6. Step 6: Final answer
    x = 10,271.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.