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Finding the Fourth Proportional to 51,412.39, 70,791.39 and 45,003.11

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Solution

The fourth proportional to 51,412.39, 70,791.39 and 45,003.11 is: 61,966.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,412.39 : 70,791.39 = 45,003.11 : x
  2. Step 2: Convert to fraction form
    51,412.39/70,791.39 = 45,003.11/x
  3. Step 3: Cross multiply
    51,412.39x = 70,791.39 × 45,003.11
  4. Step 4: Simplify right side
    51,412.39x = 3,185,832,357.27
  5. Step 5: Solve for x
    x = 3,185,832,357.27/51,412.39
  6. Step 6: Final answer
    x = 61,966.24

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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.