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Finding the Fourth Proportional to 70,283.62, 105,466.67 and 25,941.28

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Solution

The fourth proportional to 70,283.62, 105,466.67 and 25,941.28 is: 38,927.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,283.62 : 105,466.67 = 25,941.28 : x
  2. Step 2: Convert to fraction form
    70,283.62/105,466.67 = 25,941.28/x
  3. Step 3: Cross multiply
    70,283.62x = 105,466.67 × 25,941.28
  4. Step 4: Simplify right side
    70,283.62x = 2,735,940,417.14
  5. Step 5: Solve for x
    x = 2,735,940,417.14/70,283.62
  6. Step 6: Final answer
    x = 38,927.14

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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.