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Finding the Fourth Proportional to 70,615.70, 105,923.55 and 35,623.70

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Solution

The fourth proportional to 70,615.70, 105,923.55 and 35,623.70 is: 53,435.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,615.70 : 105,923.55 = 35,623.70 : x
  2. Step 2: Convert to fraction form
    70,615.70/105,923.55 = 35,623.70/x
  3. Step 3: Cross multiply
    70,615.70x = 105,923.55 × 35,623.70
  4. Step 4: Simplify right side
    70,615.70x = 3,773,388,768.14
  5. Step 5: Solve for x
    x = 3,773,388,768.14/70,615.70
  6. Step 6: Final answer
    x = 53,435.55

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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.