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Finding the Fourth Proportional to 12,368.58, 18,550.86 and 4,048.47

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Solution

The fourth proportional to 12,368.58, 18,550.86 and 4,048.47 is: 6,072.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.58 : 18,550.86 = 4,048.47 : x
  2. Step 2: Convert to fraction form
    12,368.58/18,550.86 = 4,048.47/x
  3. Step 3: Cross multiply
    12,368.58x = 18,550.86 × 4,048.47
  4. Step 4: Simplify right side
    12,368.58x = 75,102,600.18
  5. Step 5: Solve for x
    x = 75,102,600.18/12,368.58
  6. Step 6: Final answer
    x = 6,072.05

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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.