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Finding the Fourth Proportional to 61,590.70, 84,997.64 and 34,369.16

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Solution

The fourth proportional to 61,590.70, 84,997.64 and 34,369.16 is: 47,430.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,590.70 : 84,997.64 = 34,369.16 : x
  2. Step 2: Convert to fraction form
    61,590.70/84,997.64 = 34,369.16/x
  3. Step 3: Cross multiply
    61,590.70x = 84,997.64 × 34,369.16
  4. Step 4: Simplify right side
    61,590.70x = 2,921,297,434.50
  5. Step 5: Solve for x
    x = 2,921,297,434.50/61,590.70
  6. Step 6: Final answer
    x = 47,430.82

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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.