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Finding the Fourth Proportional to 61,631.91, 92,461.71 and 19,514.52

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Solution

The fourth proportional to 61,631.91, 92,461.71 and 19,514.52 is: 29,276.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,631.91 : 92,461.71 = 19,514.52 : x
  2. Step 2: Convert to fraction form
    61,631.91/92,461.71 = 19,514.52/x
  3. Step 3: Cross multiply
    61,631.91x = 92,461.71 × 19,514.52
  4. Step 4: Simplify right side
    61,631.91x = 1,804,345,889.03
  5. Step 5: Solve for x
    x = 1,804,345,889.03/61,631.91
  6. Step 6: Final answer
    x = 29,276.16

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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.