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Finding the Fourth Proportional to 70,506.48, 105,758.23 and 17,198.63

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Solution

The fourth proportional to 70,506.48, 105,758.23 and 17,198.63 is: 25,797.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,506.48 : 105,758.23 = 17,198.63 : x
  2. Step 2: Convert to fraction form
    70,506.48/105,758.23 = 17,198.63/x
  3. Step 3: Cross multiply
    70,506.48x = 105,758.23 × 17,198.63
  4. Step 4: Simplify right side
    70,506.48x = 1,818,896,667.22
  5. Step 5: Solve for x
    x = 1,818,896,667.22/70,506.48
  6. Step 6: Final answer
    x = 25,797.58

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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.