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Finding the Fourth Proportional to 84,762.86, 127,055.66 and 28,583.55

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Solution

The fourth proportional to 84,762.86, 127,055.66 and 28,583.55 is: 42,845.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,762.86 : 127,055.66 = 28,583.55 : x
  2. Step 2: Convert to fraction form
    84,762.86/127,055.66 = 28,583.55/x
  3. Step 3: Cross multiply
    84,762.86x = 127,055.66 × 28,583.55
  4. Step 4: Simplify right side
    84,762.86x = 3,631,701,667.48
  5. Step 5: Solve for x
    x = 3,631,701,667.48/84,762.86
  6. Step 6: Final answer
    x = 42,845.44

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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.