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Finding the Fourth Proportional to 70,465.44, 105,700.08 and 20,544.33

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Solution

The fourth proportional to 70,465.44, 105,700.08 and 20,544.33 is: 30,817.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,465.44 : 105,700.08 = 20,544.33 : x
  2. Step 2: Convert to fraction form
    70,465.44/105,700.08 = 20,544.33/x
  3. Step 3: Cross multiply
    70,465.44x = 105,700.08 × 20,544.33
  4. Step 4: Simplify right side
    70,465.44x = 2,171,537,324.55
  5. Step 5: Solve for x
    x = 2,171,537,324.55/70,465.44
  6. Step 6: Final answer
    x = 30,817.05

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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.