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Finding the Fourth Proportional to 70,848.52, 97,770.96 and 39,017.32

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Solution

The fourth proportional to 70,848.52, 97,770.96 and 39,017.32 is: 53,843.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,848.52 : 97,770.96 = 39,017.32 : x
  2. Step 2: Convert to fraction form
    70,848.52/97,770.96 = 39,017.32/x
  3. Step 3: Cross multiply
    70,848.52x = 97,770.96 × 39,017.32
  4. Step 4: Simplify right side
    70,848.52x = 3,814,760,833.03
  5. Step 5: Solve for x
    x = 3,814,760,833.03/70,848.52
  6. Step 6: Final answer
    x = 53,843.90

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1.5x scale

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.