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Finding the Fourth Proportional to 58,807.80, 81,153.36 and 31,949.70

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Solution

The fourth proportional to 58,807.80, 81,153.36 and 31,949.70 is: 44,089.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,807.80 : 81,153.36 = 31,949.70 : x
  2. Step 2: Convert to fraction form
    58,807.80/81,153.36 = 31,949.70/x
  3. Step 3: Cross multiply
    58,807.80x = 81,153.36 × 31,949.70
  4. Step 4: Simplify right side
    58,807.80x = 2,592,825,505.99
  5. Step 5: Solve for x
    x = 2,592,825,505.99/58,807.80
  6. Step 6: Final answer
    x = 44,089.82

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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.