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Finding the Fourth Proportional to 70,486.02, 97,271.96 and 38,654.64

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Solution

The fourth proportional to 70,486.02, 97,271.96 and 38,654.64 is: 53,344.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,486.02 : 97,271.96 = 38,654.64 : x
  2. Step 2: Convert to fraction form
    70,486.02/97,271.96 = 38,654.64/x
  3. Step 3: Cross multiply
    70,486.02x = 97,271.96 × 38,654.64
  4. Step 4: Simplify right side
    70,486.02x = 3,760,012,402.62
  5. Step 5: Solve for x
    x = 3,760,012,402.62/70,486.02
  6. Step 6: Final answer
    x = 53,344.09

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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.