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Finding the Fourth Proportional to 64,491.36, 88,991.28 and 36,200.16

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Solution

The fourth proportional to 64,491.36, 88,991.28 and 36,200.16 is: 49,952.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,491.36 : 88,991.28 = 36,200.16 : x
  2. Step 2: Convert to fraction form
    64,491.36/88,991.28 = 36,200.16/x
  3. Step 3: Cross multiply
    64,491.36x = 88,991.28 × 36,200.16
  4. Step 4: Simplify right side
    64,491.36x = 3,221,498,574.60
  5. Step 5: Solve for x
    x = 3,221,498,574.60/64,491.36
  6. Step 6: Final answer
    x = 49,952.41

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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.