Home / 49,681.12-68,569.68-28,474.60

Finding the Fourth Proportional to 49,681.12, 68,569.68 and 28,474.60

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Solution

The fourth proportional to 49,681.12, 68,569.68 and 28,474.60 is: 39,300.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,681.12 : 68,569.68 = 28,474.60 : x
  2. Step 2: Convert to fraction form
    49,681.12/68,569.68 = 28,474.60/x
  3. Step 3: Cross multiply
    49,681.12x = 68,569.68 × 28,474.60
  4. Step 4: Simplify right side
    49,681.12x = 1,952,494,210.13
  5. Step 5: Solve for x
    x = 1,952,494,210.13/49,681.12
  6. Step 6: Final answer
    x = 39,300.53

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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.