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Finding the Fourth Proportional to 39,757.77, 59,636.39 and 12,055.77

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Solution

The fourth proportional to 39,757.77, 59,636.39 and 12,055.77 is: 18,083.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,757.77 : 59,636.39 = 12,055.77 : x
  2. Step 2: Convert to fraction form
    39,757.77/59,636.39 = 12,055.77/x
  3. Step 3: Cross multiply
    39,757.77x = 59,636.39 × 12,055.77
  4. Step 4: Simplify right side
    39,757.77x = 718,962,541.19
  5. Step 5: Solve for x
    x = 718,962,541.19/39,757.77
  6. Step 6: Final answer
    x = 18,083.57

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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.