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Finding the Fourth Proportional to 39,600.66, 59,401.74 and 12,946.66

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Solution

The fourth proportional to 39,600.66, 59,401.74 and 12,946.66 is: 19,420.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,600.66 : 59,401.74 = 12,946.66 : x
  2. Step 2: Convert to fraction form
    39,600.66/59,401.74 = 12,946.66/x
  3. Step 3: Cross multiply
    39,600.66x = 59,401.74 × 12,946.66
  4. Step 4: Simplify right side
    39,600.66x = 769,054,131.19
  5. Step 5: Solve for x
    x = 769,054,131.19/39,600.66
  6. Step 6: Final answer
    x = 19,420.24

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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.