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Finding the Fourth Proportional to 70,813.53, 97,723.53 and 38,984.58

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Solution

The fourth proportional to 70,813.53, 97,723.53 and 38,984.58 is: 53,799.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,813.53 : 97,723.53 = 38,984.58 : x
  2. Step 2: Convert to fraction form
    70,813.53/97,723.53 = 38,984.58/x
  3. Step 3: Cross multiply
    70,813.53x = 97,723.53 × 38,984.58
  4. Step 4: Simplify right side
    70,813.53x = 3,809,710,773.17
  5. Step 5: Solve for x
    x = 3,809,710,773.17/70,813.53
  6. Step 6: Final answer
    x = 53,799.19

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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.