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Finding the Fourth Proportional to 16,649.56, 22,980.24 and 10,985.32

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Solution

The fourth proportional to 16,649.56, 22,980.24 and 10,985.32 is: 15,162.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,649.56 : 22,980.24 = 10,985.32 : x
  2. Step 2: Convert to fraction form
    16,649.56/22,980.24 = 10,985.32/x
  3. Step 3: Cross multiply
    16,649.56x = 22,980.24 × 10,985.32
  4. Step 4: Simplify right side
    16,649.56x = 252,445,290.08
  5. Step 5: Solve for x
    x = 252,445,290.08/16,649.56
  6. Step 6: Final answer
    x = 15,162.28

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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.