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Finding the Fourth Proportional to 70,838.21, 106,231.79 and 23,444.55

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Solution

The fourth proportional to 70,838.21, 106,231.79 and 23,444.55 is: 35,158.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,838.21 : 106,231.79 = 23,444.55 : x
  2. Step 2: Convert to fraction form
    70,838.21/106,231.79 = 23,444.55/x
  3. Step 3: Cross multiply
    70,838.21x = 106,231.79 × 23,444.55
  4. Step 4: Simplify right side
    70,838.21x = 2,490,556,395.02
  5. Step 5: Solve for x
    x = 2,490,556,395.02/70,838.21
  6. Step 6: Final answer
    x = 35,158.38

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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.