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Finding the Fourth Proportional to 58,762.80, 88,086.60 and 30,697.20

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Solution

The fourth proportional to 58,762.80, 88,086.60 and 30,697.20 is: 46,015.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,762.80 : 88,086.60 = 30,697.20 : x
  2. Step 2: Convert to fraction form
    58,762.80/88,086.60 = 30,697.20/x
  3. Step 3: Cross multiply
    58,762.80x = 88,086.60 × 30,697.20
  4. Step 4: Simplify right side
    58,762.80x = 2,704,011,977.52
  5. Step 5: Solve for x
    x = 2,704,011,977.52/58,762.80
  6. Step 6: Final answer
    x = 46,015.71

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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.