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Finding the Fourth Proportional to 70,145.01, 96,800.07 and 38,313.99

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Solution

The fourth proportional to 70,145.01, 96,800.07 and 38,313.99 is: 52,873.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,145.01 : 96,800.07 = 38,313.99 : x
  2. Step 2: Convert to fraction form
    70,145.01/96,800.07 = 38,313.99/x
  3. Step 3: Cross multiply
    70,145.01x = 96,800.07 × 38,313.99
  4. Step 4: Simplify right side
    70,145.01x = 3,708,796,913.98
  5. Step 5: Solve for x
    x = 3,708,796,913.98/70,145.01
  6. Step 6: Final answer
    x = 52,873.28

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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.