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Finding the Fourth Proportional to 70,328.26, 105,510.52 and 25,347.83

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Solution

The fourth proportional to 70,328.26, 105,510.52 and 25,347.83 is: 38,028.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,328.26 : 105,510.52 = 25,347.83 : x
  2. Step 2: Convert to fraction form
    70,328.26/105,510.52 = 25,347.83/x
  3. Step 3: Cross multiply
    70,328.26x = 105,510.52 × 25,347.83
  4. Step 4: Simplify right side
    70,328.26x = 2,674,462,228.30
  5. Step 5: Solve for x
    x = 2,674,462,228.30/70,328.26
  6. Step 6: Final answer
    x = 38,028.27

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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.