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Finding the Fourth Proportional to 58,468.51, 87,693.03 and 21,021.01

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Solution

The fourth proportional to 58,468.51, 87,693.03 and 21,021.01 is: 31,528.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,468.51 : 87,693.03 = 21,021.01 : x
  2. Step 2: Convert to fraction form
    58,468.51/87,693.03 = 21,021.01/x
  3. Step 3: Cross multiply
    58,468.51x = 87,693.03 × 21,021.01
  4. Step 4: Simplify right side
    58,468.51x = 1,843,396,060.56
  5. Step 5: Solve for x
    x = 1,843,396,060.56/58,468.51
  6. Step 6: Final answer
    x = 31,528.02

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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.