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Finding the Fourth Proportional to 12,341.68, 17,034 and 8,572.72

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Solution

The fourth proportional to 12,341.68, 17,034 and 8,572.72 is: 11,832.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,341.68 : 17,034 = 8,572.72 : x
  2. Step 2: Convert to fraction form
    12,341.68/17,034 = 8,572.72/x
  3. Step 3: Cross multiply
    12,341.68x = 17,034 × 8,572.72
  4. Step 4: Simplify right side
    12,341.68x = 146,027,712.48
  5. Step 5: Solve for x
    x = 146,027,712.48/12,341.68
  6. Step 6: Final answer
    x = 11,832.08

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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.