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Finding the Fourth Proportional to 14,417.67, 19,898.31 and 8,451.71

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Solution

The fourth proportional to 14,417.67, 19,898.31 and 8,451.71 is: 11,664.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,417.67 : 19,898.31 = 8,451.71 : x
  2. Step 2: Convert to fraction form
    14,417.67/19,898.31 = 8,451.71/x
  3. Step 3: Cross multiply
    14,417.67x = 19,898.31 × 8,451.71
  4. Step 4: Simplify right side
    14,417.67x = 168,174,646.12
  5. Step 5: Solve for x
    x = 168,174,646.12/14,417.67
  6. Step 6: Final answer
    x = 11,664.48

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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.