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Finding the Fourth Proportional to 14,148.74, 21,225.78 and 6,753.74

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Solution

The fourth proportional to 14,148.74, 21,225.78 and 6,753.74 is: 10,131.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.74 : 21,225.78 = 6,753.74 : x
  2. Step 2: Convert to fraction form
    14,148.74/21,225.78 = 6,753.74/x
  3. Step 3: Cross multiply
    14,148.74x = 21,225.78 × 6,753.74
  4. Step 4: Simplify right side
    14,148.74x = 143,353,293.29
  5. Step 5: Solve for x
    x = 143,353,293.29/14,148.74
  6. Step 6: Final answer
    x = 10,131.88

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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.