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Finding the Fourth Proportional to 21,968.01, 32,955.53 and 9,491.82

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Solution

The fourth proportional to 21,968.01, 32,955.53 and 9,491.82 is: 14,239.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,968.01 : 32,955.53 = 9,491.82 : x
  2. Step 2: Convert to fraction form
    21,968.01/32,955.53 = 9,491.82/x
  3. Step 3: Cross multiply
    21,968.01x = 32,955.53 × 9,491.82
  4. Step 4: Simplify right side
    21,968.01x = 312,807,787.72
  5. Step 5: Solve for x
    x = 312,807,787.72/21,968.01
  6. Step 6: Final answer
    x = 14,239.24

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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.