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Finding the Fourth Proportional to 12,356.48, 17,051.98 and 6,691.30

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Solution

The fourth proportional to 12,356.48, 17,051.98 and 6,691.30 is: 9,234.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.48 : 17,051.98 = 6,691.30 : x
  2. Step 2: Convert to fraction form
    12,356.48/17,051.98 = 6,691.30/x
  3. Step 3: Cross multiply
    12,356.48x = 17,051.98 × 6,691.30
  4. Step 4: Simplify right side
    12,356.48x = 114,099,828.51
  5. Step 5: Solve for x
    x = 114,099,828.51/12,356.48
  6. Step 6: Final answer
    x = 9,234.01

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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.