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Finding the Fourth Proportional to 14,218.34, 19,619.19 and 8,248.91

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Solution

The fourth proportional to 14,218.34, 19,619.19 and 8,248.91 is: 11,382.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.34 : 19,619.19 = 8,248.91 : x
  2. Step 2: Convert to fraction form
    14,218.34/19,619.19 = 8,248.91/x
  3. Step 3: Cross multiply
    14,218.34x = 19,619.19 × 8,248.91
  4. Step 4: Simplify right side
    14,218.34x = 161,836,834.49
  5. Step 5: Solve for x
    x = 161,836,834.49/14,218.34
  6. Step 6: Final answer
    x = 11,382.26

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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.