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Finding the Fourth Proportional to 45,291.05, 67,631.58 and 36,987.54

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Solution

The fourth proportional to 45,291.05, 67,631.58 and 36,987.54 is: 55,232.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,291.05 : 67,631.58 = 36,987.54 : x
  2. Step 2: Convert to fraction form
    45,291.05/67,631.58 = 36,987.54/x
  3. Step 3: Cross multiply
    45,291.05x = 67,631.58 × 36,987.54
  4. Step 4: Simplify right side
    45,291.05x = 2,501,525,620.92
  5. Step 5: Solve for x
    x = 2,501,525,620.92/45,291.05
  6. Step 6: Final answer
    x = 55,232.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.