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Finding the Fourth Proportional to 21,501.99, 29,628.99 and 16,466.22

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Solution

The fourth proportional to 21,501.99, 29,628.99 and 16,466.22 is: 22,689.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,501.99 : 29,628.99 = 16,466.22 : x
  2. Step 2: Convert to fraction form
    21,501.99/29,628.99 = 16,466.22/x
  3. Step 3: Cross multiply
    21,501.99x = 29,628.99 × 16,466.22
  4. Step 4: Simplify right side
    21,501.99x = 487,877,467.72
  5. Step 5: Solve for x
    x = 487,877,467.72/21,501.99
  6. Step 6: Final answer
    x = 22,689.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.