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Finding the Fourth Proportional to 70,710.46, 97,579.56 and 38,879.08

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Solution

The fourth proportional to 70,710.46, 97,579.56 and 38,879.08 is: 53,652.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,710.46 : 97,579.56 = 38,879.08 : x
  2. Step 2: Convert to fraction form
    70,710.46/97,579.56 = 38,879.08/x
  3. Step 3: Cross multiply
    70,710.46x = 97,579.56 × 38,879.08
  4. Step 4: Simplify right side
    70,710.46x = 3,793,803,519.60
  5. Step 5: Solve for x
    x = 3,793,803,519.60/70,710.46
  6. Step 6: Final answer
    x = 53,652.65

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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.