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Finding the Fourth Proportional to 14,638, 21,959.77 and 5,873.60

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Solution

The fourth proportional to 14,638, 21,959.77 and 5,873.60 is: 8,811.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,638 : 21,959.77 = 5,873.60 : x
  2. Step 2: Convert to fraction form
    14,638/21,959.77 = 5,873.60/x
  3. Step 3: Cross multiply
    14,638x = 21,959.77 × 5,873.60
  4. Step 4: Simplify right side
    14,638x = 128,982,905.07
  5. Step 5: Solve for x
    x = 128,982,905.07/14,638
  6. Step 6: Final answer
    x = 8,811.51

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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.