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Finding the Fourth Proportional to 70,407.30, 105,588.62 and 23,011.67

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Solution

The fourth proportional to 70,407.30, 105,588.62 and 23,011.67 is: 34,510.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,407.30 : 105,588.62 = 23,011.67 : x
  2. Step 2: Convert to fraction form
    70,407.30/105,588.62 = 23,011.67/x
  3. Step 3: Cross multiply
    70,407.30x = 105,588.62 × 23,011.67
  4. Step 4: Simplify right side
    70,407.30x = 2,429,770,479.20
  5. Step 5: Solve for x
    x = 2,429,770,479.20/70,407.30
  6. Step 6: Final answer
    x = 34,510.21

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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.