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Finding the Fourth Proportional to 70,225.80, 105,338.46 and 23,478.60

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Solution

The fourth proportional to 70,225.80, 105,338.46 and 23,478.60 is: 35,217.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,225.80 : 105,338.46 = 23,478.60 : x
  2. Step 2: Convert to fraction form
    70,225.80/105,338.46 = 23,478.60/x
  3. Step 3: Cross multiply
    70,225.80x = 105,338.46 × 23,478.60
  4. Step 4: Simplify right side
    70,225.80x = 2,473,199,566.96
  5. Step 5: Solve for x
    x = 2,473,199,566.96/70,225.80
  6. Step 6: Final answer
    x = 35,217.82

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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.