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Finding the Fourth Proportional to 13,448.58, 20,118.60 and 12,048.09

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Solution

The fourth proportional to 13,448.58, 20,118.60 and 12,048.09 is: 18,023.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.58 : 20,118.60 = 12,048.09 : x
  2. Step 2: Convert to fraction form
    13,448.58/20,118.60 = 12,048.09/x
  3. Step 3: Cross multiply
    13,448.58x = 20,118.60 × 12,048.09
  4. Step 4: Simplify right side
    13,448.58x = 242,390,703.47
  5. Step 5: Solve for x
    x = 242,390,703.47/13,448.58
  6. Step 6: Final answer
    x = 18,023.52

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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.