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Finding the Fourth Proportional to 73,133.76, 100,924.77 and 39,599.76

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Solution

The fourth proportional to 73,133.76, 100,924.77 and 39,599.76 is: 54,647.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,133.76 : 100,924.77 = 39,599.76 : x
  2. Step 2: Convert to fraction form
    73,133.76/100,924.77 = 39,599.76/x
  3. Step 3: Cross multiply
    73,133.76x = 100,924.77 × 39,599.76
  4. Step 4: Simplify right side
    73,133.76x = 3,996,596,670.06
  5. Step 5: Solve for x
    x = 3,996,596,670.06/73,133.76
  6. Step 6: Final answer
    x = 54,647.77

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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.