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Finding the Fourth Proportional to 76,007.76, 104,889.96 and 42,473.76

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Solution

The fourth proportional to 76,007.76, 104,889.96 and 42,473.76 is: 58,613.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,007.76 : 104,889.96 = 42,473.76 : x
  2. Step 2: Convert to fraction form
    76,007.76/104,889.96 = 42,473.76/x
  3. Step 3: Cross multiply
    76,007.76x = 104,889.96 × 42,473.76
  4. Step 4: Simplify right side
    76,007.76x = 4,455,070,987.45
  5. Step 5: Solve for x
    x = 4,455,070,987.45/76,007.76
  6. Step 6: Final answer
    x = 58,613.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.