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Finding the Fourth Proportional to 21,683.25, 32,537.03 and 21,518.01

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Solution

The fourth proportional to 21,683.25, 32,537.03 and 21,518.01 is: 32,289.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,683.25 : 32,537.03 = 21,518.01 : x
  2. Step 2: Convert to fraction form
    21,683.25/32,537.03 = 21,518.01/x
  3. Step 3: Cross multiply
    21,683.25x = 32,537.03 × 21,518.01
  4. Step 4: Simplify right side
    21,683.25x = 700,132,029.32
  5. Step 5: Solve for x
    x = 700,132,029.32/21,683.25
  6. Step 6: Final answer
    x = 32,289.07

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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.