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Finding the Fourth Proportional to 14,124.52, 19,491.84 and 7,836.88

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Solution

The fourth proportional to 14,124.52, 19,491.84 and 7,836.88 is: 10,814.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,124.52 : 19,491.84 = 7,836.88 : x
  2. Step 2: Convert to fraction form
    14,124.52/19,491.84 = 7,836.88/x
  3. Step 3: Cross multiply
    14,124.52x = 19,491.84 × 7,836.88
  4. Step 4: Simplify right side
    14,124.52x = 152,755,211.06
  5. Step 5: Solve for x
    x = 152,755,211.06/14,124.52
  6. Step 6: Final answer
    x = 10,814.90

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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.