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Finding the Fourth Proportional to 63,714.51, 87,915.68 and 35,419.47

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Solution

The fourth proportional to 63,714.51, 87,915.68 and 35,419.47 is: 48,873.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,714.51 : 87,915.68 = 35,419.47 : x
  2. Step 2: Convert to fraction form
    63,714.51/87,915.68 = 35,419.47/x
  3. Step 3: Cross multiply
    63,714.51x = 87,915.68 × 35,419.47
  4. Step 4: Simplify right side
    63,714.51x = 3,113,926,613.19
  5. Step 5: Solve for x
    x = 3,113,926,613.19/63,714.51
  6. Step 6: Final answer
    x = 48,873.12

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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.