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Finding the Fourth Proportional to 64,388.48, 88,840.68 and 37,515.72

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Solution

The fourth proportional to 64,388.48, 88,840.68 and 37,515.72 is: 51,762.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,388.48 : 88,840.68 = 37,515.72 : x
  2. Step 2: Convert to fraction form
    64,388.48/88,840.68 = 37,515.72/x
  3. Step 3: Cross multiply
    64,388.48x = 88,840.68 × 37,515.72
  4. Step 4: Simplify right side
    64,388.48x = 3,332,922,075.49
  5. Step 5: Solve for x
    x = 3,332,922,075.49/64,388.48
  6. Step 6: Final answer
    x = 51,762.71

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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.