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Finding the Fourth Proportional to 61,062.30, 91,590.21 and 19,506.06

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Solution

The fourth proportional to 61,062.30, 91,590.21 and 19,506.06 is: 29,258.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,062.30 : 91,590.21 = 19,506.06 : x
  2. Step 2: Convert to fraction form
    61,062.30/91,590.21 = 19,506.06/x
  3. Step 3: Cross multiply
    61,062.30x = 91,590.21 × 19,506.06
  4. Step 4: Simplify right side
    61,062.30x = 1,786,564,131.67
  5. Step 5: Solve for x
    x = 1,786,564,131.67/61,062.30
  6. Step 6: Final answer
    x = 29,258.05

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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.