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Finding the Fourth Proportional to 51,164.59, 70,608.37 and 28,503.95

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Solution

The fourth proportional to 51,164.59, 70,608.37 and 28,503.95 is: 39,336.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,164.59 : 70,608.37 = 28,503.95 : x
  2. Step 2: Convert to fraction form
    51,164.59/70,608.37 = 28,503.95/x
  3. Step 3: Cross multiply
    51,164.59x = 70,608.37 × 28,503.95
  4. Step 4: Simplify right side
    51,164.59x = 2,012,617,448.06
  5. Step 5: Solve for x
    x = 2,012,617,448.06/51,164.59
  6. Step 6: Final answer
    x = 39,336.14

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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.