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Finding the Fourth Proportional to 51,485.71, 77,121.03 and 32,756.08

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Solution

The fourth proportional to 51,485.71, 77,121.03 and 32,756.08 is: 49,065.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,485.71 : 77,121.03 = 32,756.08 : x
  2. Step 2: Convert to fraction form
    51,485.71/77,121.03 = 32,756.08/x
  3. Step 3: Cross multiply
    51,485.71x = 77,121.03 × 32,756.08
  4. Step 4: Simplify right side
    51,485.71x = 2,526,182,628.36
  5. Step 5: Solve for x
    x = 2,526,182,628.36/51,485.71
  6. Step 6: Final answer
    x = 49,065.70

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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.