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Finding the Fourth Proportional to 21,643.43, 32,466.99 and 7,602.23

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Solution

The fourth proportional to 21,643.43, 32,466.99 and 7,602.23 is: 11,403.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,643.43 : 32,466.99 = 7,602.23 : x
  2. Step 2: Convert to fraction form
    21,643.43/32,466.99 = 7,602.23/x
  3. Step 3: Cross multiply
    21,643.43x = 32,466.99 × 7,602.23
  4. Step 4: Simplify right side
    21,643.43x = 246,821,525.39
  5. Step 5: Solve for x
    x = 246,821,525.39/21,643.43
  6. Step 6: Final answer
    x = 11,403.99

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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.