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Finding the Fourth Proportional to 70,739.48, 106,112.52 and 23,358.72

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Solution

The fourth proportional to 70,739.48, 106,112.52 and 23,358.72 is: 35,039.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,739.48 : 106,112.52 = 23,358.72 : x
  2. Step 2: Convert to fraction form
    70,739.48/106,112.52 = 23,358.72/x
  3. Step 3: Cross multiply
    70,739.48x = 106,112.52 × 23,358.72
  4. Step 4: Simplify right side
    70,739.48x = 2,478,652,643.17
  5. Step 5: Solve for x
    x = 2,478,652,643.17/70,739.48
  6. Step 6: Final answer
    x = 35,039.17

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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.