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Finding the Fourth Proportional to 58,771, 88,156.32 and 21,331.02

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Solution

The fourth proportional to 58,771, 88,156.32 and 21,331.02 is: 31,996.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,771 : 88,156.32 = 21,331.02 : x
  2. Step 2: Convert to fraction form
    58,771/88,156.32 = 21,331.02/x
  3. Step 3: Cross multiply
    58,771x = 88,156.32 × 21,331.02
  4. Step 4: Simplify right side
    58,771x = 1,880,464,225.05
  5. Step 5: Solve for x
    x = 1,880,464,225.05/58,771
  6. Step 6: Final answer
    x = 31,996.46

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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.