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Finding the Fourth Proportional to 61,175.58, 84,421.79 and 34,317.51

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Solution

The fourth proportional to 61,175.58, 84,421.79 and 34,317.51 is: 47,357.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,175.58 : 84,421.79 = 34,317.51 : x
  2. Step 2: Convert to fraction form
    61,175.58/84,421.79 = 34,317.51/x
  3. Step 3: Cross multiply
    61,175.58x = 84,421.79 × 34,317.51
  4. Step 4: Simplify right side
    61,175.58x = 2,897,145,450.96
  5. Step 5: Solve for x
    x = 2,897,145,450.96/61,175.58
  6. Step 6: Final answer
    x = 47,357.87

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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.