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Finding the Fourth Proportional to 70,214.79, 96,895.78 and 38,383.59

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Solution

The fourth proportional to 70,214.79, 96,895.78 and 38,383.59 is: 52,969.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,214.79 : 96,895.78 = 38,383.59 : x
  2. Step 2: Convert to fraction form
    70,214.79/96,895.78 = 38,383.59/x
  3. Step 3: Cross multiply
    70,214.79x = 96,895.78 × 38,383.59
  4. Step 4: Simplify right side
    70,214.79x = 3,719,207,892.25
  5. Step 5: Solve for x
    x = 3,719,207,892.25/70,214.79
  6. Step 6: Final answer
    x = 52,969.01

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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.