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Finding the Fourth Proportional to 70,588.76, 105,885.66 and 35,509.28

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Solution

The fourth proportional to 70,588.76, 105,885.66 and 35,509.28 is: 53,265.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,588.76 : 105,885.66 = 35,509.28 : x
  2. Step 2: Convert to fraction form
    70,588.76/105,885.66 = 35,509.28/x
  3. Step 3: Cross multiply
    70,588.76x = 105,885.66 × 35,509.28
  4. Step 4: Simplify right side
    70,588.76x = 3,759,923,548.92
  5. Step 5: Solve for x
    x = 3,759,923,548.92/70,588.76
  6. Step 6: Final answer
    x = 53,265.19

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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.