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Finding the Fourth Proportional to 64,390.53, 88,858.93 and 35,714.58

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Solution

The fourth proportional to 64,390.53, 88,858.93 and 35,714.58 is: 49,286.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,390.53 : 88,858.93 = 35,714.58 : x
  2. Step 2: Convert to fraction form
    64,390.53/88,858.93 = 35,714.58/x
  3. Step 3: Cross multiply
    64,390.53x = 88,858.93 × 35,714.58
  4. Step 4: Simplify right side
    64,390.53x = 3,173,559,274.91
  5. Step 5: Solve for x
    x = 3,173,559,274.91/64,390.53
  6. Step 6: Final answer
    x = 49,286.12

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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.