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Finding the Fourth Proportional to 21,647.99, 32,457.99 and 14,229.96

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Solution

The fourth proportional to 21,647.99, 32,457.99 and 14,229.96 is: 21,335.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,647.99 : 32,457.99 = 14,229.96 : x
  2. Step 2: Convert to fraction form
    21,647.99/32,457.99 = 14,229.96/x
  3. Step 3: Cross multiply
    21,647.99x = 32,457.99 × 14,229.96
  4. Step 4: Simplify right side
    21,647.99x = 461,875,899.38
  5. Step 5: Solve for x
    x = 461,875,899.38/21,647.99
  6. Step 6: Final answer
    x = 21,335.75

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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.