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Finding the Fourth Proportional to 70,537.44, 105,806.79 and 17,946.87

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Solution

The fourth proportional to 70,537.44, 105,806.79 and 17,946.87 is: 26,920.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,537.44 : 105,806.79 = 17,946.87 : x
  2. Step 2: Convert to fraction form
    70,537.44/105,806.79 = 17,946.87/x
  3. Step 3: Cross multiply
    70,537.44x = 105,806.79 × 17,946.87
  4. Step 4: Simplify right side
    70,537.44x = 1,898,900,705.25
  5. Step 5: Solve for x
    x = 1,898,900,705.25/70,537.44
  6. Step 6: Final answer
    x = 26,920.47

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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.