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Finding the Fourth Proportional to 59,398.61, 89,111.20 and 19,954.64

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Solution

The fourth proportional to 59,398.61, 89,111.20 and 19,954.64 is: 29,936.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,398.61 : 89,111.20 = 19,954.64 : x
  2. Step 2: Convert to fraction form
    59,398.61/89,111.20 = 19,954.64/x
  3. Step 3: Cross multiply
    59,398.61x = 89,111.20 × 19,954.64
  4. Step 4: Simplify right side
    59,398.61x = 1,778,182,088.86
  5. Step 5: Solve for x
    x = 1,778,182,088.86/59,398.61
  6. Step 6: Final answer
    x = 29,936.43

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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.