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Finding the Fourth Proportional to 65,706.21, 98,476.05 and 42,004.62

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Solution

The fourth proportional to 65,706.21, 98,476.05 and 42,004.62 is: 62,953.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,706.21 : 98,476.05 = 42,004.62 : x
  2. Step 2: Convert to fraction form
    65,706.21/98,476.05 = 42,004.62/x
  3. Step 3: Cross multiply
    65,706.21x = 98,476.05 × 42,004.62
  4. Step 4: Simplify right side
    65,706.21x = 4,136,449,059.35
  5. Step 5: Solve for x
    x = 4,136,449,059.35/65,706.21
  6. Step 6: Final answer
    x = 62,953.70

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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.