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Finding the Fourth Proportional to 70,034.22, 105,030.83 and 27,900.30

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Solution

The fourth proportional to 70,034.22, 105,030.83 and 27,900.30 is: 41,842.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,034.22 : 105,030.83 = 27,900.30 : x
  2. Step 2: Convert to fraction form
    70,034.22/105,030.83 = 27,900.30/x
  3. Step 3: Cross multiply
    70,034.22x = 105,030.83 × 27,900.30
  4. Step 4: Simplify right side
    70,034.22x = 2,930,391,736.00
  5. Step 5: Solve for x
    x = 2,930,391,736.00/70,034.22
  6. Step 6: Final answer
    x = 41,842.28

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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.