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Finding the Fourth Proportional to 64,518.64, 96,668.72 and 39,506.45

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Solution

The fourth proportional to 64,518.64, 96,668.72 and 39,506.45 is: 59,192.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,518.64 : 96,668.72 = 39,506.45 : x
  2. Step 2: Convert to fraction form
    64,518.64/96,668.72 = 39,506.45/x
  3. Step 3: Cross multiply
    64,518.64x = 96,668.72 × 39,506.45
  4. Step 4: Simplify right side
    64,518.64x = 3,819,037,272.37
  5. Step 5: Solve for x
    x = 3,819,037,272.37/64,518.64
  6. Step 6: Final answer
    x = 59,192.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.