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Finding the Fourth Proportional to 48,777.80, 73,166.70 and 11,841.80

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Solution

The fourth proportional to 48,777.80, 73,166.70 and 11,841.80 is: 17,762.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,777.80 : 73,166.70 = 11,841.80 : x
  2. Step 2: Convert to fraction form
    48,777.80/73,166.70 = 11,841.80/x
  3. Step 3: Cross multiply
    48,777.80x = 73,166.70 × 11,841.80
  4. Step 4: Simplify right side
    48,777.80x = 866,425,428.06
  5. Step 5: Solve for x
    x = 866,425,428.06/48,777.80
  6. Step 6: Final answer
    x = 17,762.70

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1.5x scale

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.