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Finding the Fourth Proportional to 12,342.56, 18,505.62 and 6,798.51

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Solution

The fourth proportional to 12,342.56, 18,505.62 and 6,798.51 is: 10,193.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,342.56 : 18,505.62 = 6,798.51 : x
  2. Step 2: Convert to fraction form
    12,342.56/18,505.62 = 6,798.51/x
  3. Step 3: Cross multiply
    12,342.56x = 18,505.62 × 6,798.51
  4. Step 4: Simplify right side
    12,342.56x = 125,810,642.63
  5. Step 5: Solve for x
    x = 125,810,642.63/12,342.56
  6. Step 6: Final answer
    x = 10,193.24

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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.