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Finding the Fourth Proportional to 39,253.77, 58,883.40 and 12,977.01

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Solution

The fourth proportional to 39,253.77, 58,883.40 and 12,977.01 is: 19,466.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,253.77 : 58,883.40 = 12,977.01 : x
  2. Step 2: Convert to fraction form
    39,253.77/58,883.40 = 12,977.01/x
  3. Step 3: Cross multiply
    39,253.77x = 58,883.40 × 12,977.01
  4. Step 4: Simplify right side
    39,253.77x = 764,130,470.63
  5. Step 5: Solve for x
    x = 764,130,470.63/39,253.77
  6. Step 6: Final answer
    x = 19,466.42

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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.