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Finding the Fourth Proportional to 70,968.30, 106,448.28 and 26,591.34

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Solution

The fourth proportional to 70,968.30, 106,448.28 and 26,591.34 is: 39,885.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,968.30 : 106,448.28 = 26,591.34 : x
  2. Step 2: Convert to fraction form
    70,968.30/106,448.28 = 26,591.34/x
  3. Step 3: Cross multiply
    70,968.30x = 106,448.28 × 26,591.34
  4. Step 4: Simplify right side
    70,968.30x = 2,830,602,106.59
  5. Step 5: Solve for x
    x = 2,830,602,106.59/70,968.30
  6. Step 6: Final answer
    x = 39,885.44

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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.