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Finding the Fourth Proportional to 63,491.90, 87,621.66 and 36,270.36

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Solution

The fourth proportional to 63,491.90, 87,621.66 and 36,270.36 is: 50,054.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,491.90 : 87,621.66 = 36,270.36 : x
  2. Step 2: Convert to fraction form
    63,491.90/87,621.66 = 36,270.36/x
  3. Step 3: Cross multiply
    63,491.90x = 87,621.66 × 36,270.36
  4. Step 4: Simplify right side
    63,491.90x = 3,178,069,152.00
  5. Step 5: Solve for x
    x = 3,178,069,152.00/63,491.90
  6. Step 6: Final answer
    x = 50,054.72

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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.