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Finding the Fourth Proportional to 70,068.73, 96,695.20 and 38,238.30

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Solution

The fourth proportional to 70,068.73, 96,695.20 and 38,238.30 is: 52,769.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,068.73 : 96,695.20 = 38,238.30 : x
  2. Step 2: Convert to fraction form
    70,068.73/96,695.20 = 38,238.30/x
  3. Step 3: Cross multiply
    70,068.73x = 96,695.20 × 38,238.30
  4. Step 4: Simplify right side
    70,068.73x = 3,697,460,066.16
  5. Step 5: Solve for x
    x = 3,697,460,066.16/70,068.73
  6. Step 6: Final answer
    x = 52,769.05

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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.