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Finding the Fourth Proportional to 70,328.40, 105,485.31 and 37,034.97

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Solution

The fourth proportional to 70,328.40, 105,485.31 and 37,034.97 is: 55,548.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,328.40 : 105,485.31 = 37,034.97 : x
  2. Step 2: Convert to fraction form
    70,328.40/105,485.31 = 37,034.97/x
  3. Step 3: Cross multiply
    70,328.40x = 105,485.31 × 37,034.97
  4. Step 4: Simplify right side
    70,328.40x = 3,906,645,291.29
  5. Step 5: Solve for x
    x = 3,906,645,291.29/70,328.40
  6. Step 6: Final answer
    x = 55,548.62

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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.