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Finding the Fourth Proportional to 45,891.45, 63,394.72 and 35,415.72

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Solution

The fourth proportional to 45,891.45, 63,394.72 and 35,415.72 is: 48,923.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,891.45 : 63,394.72 = 35,415.72 : x
  2. Step 2: Convert to fraction form
    45,891.45/63,394.72 = 35,415.72/x
  3. Step 3: Cross multiply
    45,891.45x = 63,394.72 × 35,415.72
  4. Step 4: Simplify right side
    45,891.45x = 2,245,169,564.46
  5. Step 5: Solve for x
    x = 2,245,169,564.46/45,891.45
  6. Step 6: Final answer
    x = 48,923.48

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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.