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Finding the Fourth Proportional to 70,061.67, 105,026.90 and 25,676.51

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Solution

The fourth proportional to 70,061.67, 105,026.90 and 25,676.51 is: 38,490.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,061.67 : 105,026.90 = 25,676.51 : x
  2. Step 2: Convert to fraction form
    70,061.67/105,026.90 = 25,676.51/x
  3. Step 3: Cross multiply
    70,061.67x = 105,026.90 × 25,676.51
  4. Step 4: Simplify right side
    70,061.67x = 2,696,723,594.60
  5. Step 5: Solve for x
    x = 2,696,723,594.60/70,061.67
  6. Step 6: Final answer
    x = 38,490.71

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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.