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Finding the Fourth Proportional to 66,962.48, 100,460.44 and 47,279.52

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Solution

The fourth proportional to 66,962.48, 100,460.44 and 47,279.52 is: 70,931.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,962.48 : 100,460.44 = 47,279.52 : x
  2. Step 2: Convert to fraction form
    66,962.48/100,460.44 = 47,279.52/x
  3. Step 3: Cross multiply
    66,962.48x = 100,460.44 × 47,279.52
  4. Step 4: Simplify right side
    66,962.48x = 4,749,721,382.19
  5. Step 5: Solve for x
    x = 4,749,721,382.19/66,962.48
  6. Step 6: Final answer
    x = 70,931.09

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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.