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Finding the Fourth Proportional to 14,124.66, 19,490.67 and 7,836.63

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Solution

The fourth proportional to 14,124.66, 19,490.67 and 7,836.63 is: 10,813.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,124.66 : 19,490.67 = 7,836.63 : x
  2. Step 2: Convert to fraction form
    14,124.66/19,490.67 = 7,836.63/x
  3. Step 3: Cross multiply
    14,124.66x = 19,490.67 × 7,836.63
  4. Step 4: Simplify right side
    14,124.66x = 152,741,169.24
  5. Step 5: Solve for x
    x = 152,741,169.24/14,124.66
  6. Step 6: Final answer
    x = 10,813.79

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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.