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Finding the Fourth Proportional to 14,612.88, 21,917.25 and 4,752.30

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Solution

The fourth proportional to 14,612.88, 21,917.25 and 4,752.30 is: 7,127.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,612.88 : 21,917.25 = 4,752.30 : x
  2. Step 2: Convert to fraction form
    14,612.88/21,917.25 = 4,752.30/x
  3. Step 3: Cross multiply
    14,612.88x = 21,917.25 × 4,752.30
  4. Step 4: Simplify right side
    14,612.88x = 104,157,347.18
  5. Step 5: Solve for x
    x = 104,157,347.18/14,612.88
  6. Step 6: Final answer
    x = 7,127.78

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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.