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Finding the Fourth Proportional to 70,798.43, 97,701.08 and 38,966.64

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Solution

The fourth proportional to 70,798.43, 97,701.08 and 38,966.64 is: 53,773.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,798.43 : 97,701.08 = 38,966.64 : x
  2. Step 2: Convert to fraction form
    70,798.43/97,701.08 = 38,966.64/x
  3. Step 3: Cross multiply
    70,798.43x = 97,701.08 × 38,966.64
  4. Step 4: Simplify right side
    70,798.43x = 3,807,082,617.14
  5. Step 5: Solve for x
    x = 3,807,082,617.14/70,798.43
  6. Step 6: Final answer
    x = 53,773.55

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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.