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Finding the Fourth Proportional to 70,358.73, 105,538.75 and 17,768.16

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Solution

The fourth proportional to 70,358.73, 105,538.75 and 17,768.16 is: 26,652.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,358.73 : 105,538.75 = 17,768.16 : x
  2. Step 2: Convert to fraction form
    70,358.73/105,538.75 = 17,768.16/x
  3. Step 3: Cross multiply
    70,358.73x = 105,538.75 × 17,768.16
  4. Step 4: Simplify right side
    70,358.73x = 1,875,229,351.78
  5. Step 5: Solve for x
    x = 1,875,229,351.78/70,358.73
  6. Step 6: Final answer
    x = 26,652.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.