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Finding the Fourth Proportional to 16,649.86, 22,980.03 and 10,689.06

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Solution

The fourth proportional to 16,649.86, 22,980.03 and 10,689.06 is: 14,752.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,649.86 : 22,980.03 = 10,689.06 : x
  2. Step 2: Convert to fraction form
    16,649.86/22,980.03 = 10,689.06/x
  3. Step 3: Cross multiply
    16,649.86x = 22,980.03 × 10,689.06
  4. Step 4: Simplify right side
    16,649.86x = 245,634,919.47
  5. Step 5: Solve for x
    x = 245,634,919.47/16,649.86
  6. Step 6: Final answer
    x = 14,752.97

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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.