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Finding the Fourth Proportional to 51,602.39, 77,425.50 and 28,201.49

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Solution

The fourth proportional to 51,602.39, 77,425.50 and 28,201.49 is: 42,314.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,602.39 : 77,425.50 = 28,201.49 : x
  2. Step 2: Convert to fraction form
    51,602.39/77,425.50 = 28,201.49/x
  3. Step 3: Cross multiply
    51,602.39x = 77,425.50 × 28,201.49
  4. Step 4: Simplify right side
    51,602.39x = 2,183,513,935.86
  5. Step 5: Solve for x
    x = 2,183,513,935.86/51,602.39
  6. Step 6: Final answer
    x = 42,314.21

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1.5x scale

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.