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Finding the Fourth Proportional to 58,806.80, 81,152.40 and 31,949.12

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Solution

The fourth proportional to 58,806.80, 81,152.40 and 31,949.12 is: 44,089.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,806.80 : 81,152.40 = 31,949.12 : x
  2. Step 2: Convert to fraction form
    58,806.80/81,152.40 = 31,949.12/x
  3. Step 3: Cross multiply
    58,806.80x = 81,152.40 × 31,949.12
  4. Step 4: Simplify right side
    58,806.80x = 2,592,747,765.89
  5. Step 5: Solve for x
    x = 2,592,747,765.89/58,806.80
  6. Step 6: Final answer
    x = 44,089.25

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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.