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Finding the Fourth Proportional to 58,466.90, 87,700.30 and 21,027.08

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Solution

The fourth proportional to 58,466.90, 87,700.30 and 21,027.08 is: 31,540.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,466.90 : 87,700.30 = 21,027.08 : x
  2. Step 2: Convert to fraction form
    58,466.90/87,700.30 = 21,027.08/x
  3. Step 3: Cross multiply
    58,466.90x = 87,700.30 × 21,027.08
  4. Step 4: Simplify right side
    58,466.90x = 1,844,081,224.12
  5. Step 5: Solve for x
    x = 1,844,081,224.12/58,466.90
  6. Step 6: Final answer
    x = 31,540.60

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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.