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Finding the Fourth Proportional to 21,652.71, 32,482.71 and 7,612.17

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Solution

The fourth proportional to 21,652.71, 32,482.71 and 7,612.17 is: 11,419.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,652.71 : 32,482.71 = 7,612.17 : x
  2. Step 2: Convert to fraction form
    21,652.71/32,482.71 = 7,612.17/x
  3. Step 3: Cross multiply
    21,652.71x = 32,482.71 × 7,612.17
  4. Step 4: Simplify right side
    21,652.71x = 247,263,910.58
  5. Step 5: Solve for x
    x = 247,263,910.58/21,652.71
  6. Step 6: Final answer
    x = 11,419.54

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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.