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Finding the Fourth Proportional to 25,457.84, 38,174.42 and 8,818.82

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Solution

The fourth proportional to 25,457.84, 38,174.42 and 8,818.82 is: 13,223.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,457.84 : 38,174.42 = 8,818.82 : x
  2. Step 2: Convert to fraction form
    25,457.84/38,174.42 = 8,818.82/x
  3. Step 3: Cross multiply
    25,457.84x = 38,174.42 × 8,818.82
  4. Step 4: Simplify right side
    25,457.84x = 336,653,338.58
  5. Step 5: Solve for x
    x = 336,653,338.58/25,457.84
  6. Step 6: Final answer
    x = 13,223.96

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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.