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Finding the Fourth Proportional to 58,737.69, 81,058.09 and 31,880.20

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Solution

The fourth proportional to 58,737.69, 81,058.09 and 31,880.20 is: 43,994.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,737.69 : 81,058.09 = 31,880.20 : x
  2. Step 2: Convert to fraction form
    58,737.69/81,058.09 = 31,880.20/x
  3. Step 3: Cross multiply
    58,737.69x = 81,058.09 × 31,880.20
  4. Step 4: Simplify right side
    58,737.69x = 2,584,148,310.88
  5. Step 5: Solve for x
    x = 2,584,148,310.88/58,737.69
  6. Step 6: Final answer
    x = 43,994.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.