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Finding the Fourth Proportional to 62,707.59, 94,075.71 and 20,591.25

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Solution

The fourth proportional to 62,707.59, 94,075.71 and 20,591.25 is: 30,891.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,707.59 : 94,075.71 = 20,591.25 : x
  2. Step 2: Convert to fraction form
    62,707.59/94,075.71 = 20,591.25/x
  3. Step 3: Cross multiply
    62,707.59x = 94,075.71 × 20,591.25
  4. Step 4: Simplify right side
    62,707.59x = 1,937,136,463.54
  5. Step 5: Solve for x
    x = 1,937,136,463.54/62,707.59
  6. Step 6: Final answer
    x = 30,891.58

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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.