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Finding the Fourth Proportional to 12,187.48, 16,818.74 and 6,598.48

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Solution

The fourth proportional to 12,187.48, 16,818.74 and 6,598.48 is: 9,105.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.48 : 16,818.74 = 6,598.48 : x
  2. Step 2: Convert to fraction form
    12,187.48/16,818.74 = 6,598.48/x
  3. Step 3: Cross multiply
    12,187.48x = 16,818.74 × 6,598.48
  4. Step 4: Simplify right side
    12,187.48x = 110,978,119.52
  5. Step 5: Solve for x
    x = 110,978,119.52/12,187.48
  6. Step 6: Final answer
    x = 9,105.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.