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Finding the Fourth Proportional to 12,656.18, 18,992.16 and 6,089.10

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Solution

The fourth proportional to 12,656.18, 18,992.16 and 6,089.10 is: 9,137.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.18 : 18,992.16 = 6,089.10 : x
  2. Step 2: Convert to fraction form
    12,656.18/18,992.16 = 6,089.10/x
  3. Step 3: Cross multiply
    12,656.18x = 18,992.16 × 6,089.10
  4. Step 4: Simplify right side
    12,656.18x = 115,645,161.46
  5. Step 5: Solve for x
    x = 115,645,161.46/12,656.18
  6. Step 6: Final answer
    x = 9,137.45

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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.