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Finding the Fourth Proportional to 9,345.67, 12,894.75 and 5,566.41

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Solution

The fourth proportional to 9,345.67, 12,894.75 and 5,566.41 is: 7,680.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,345.67 : 12,894.75 = 5,566.41 : x
  2. Step 2: Convert to fraction form
    9,345.67/12,894.75 = 5,566.41/x
  3. Step 3: Cross multiply
    9,345.67x = 12,894.75 × 5,566.41
  4. Step 4: Simplify right side
    9,345.67x = 71,777,465.35
  5. Step 5: Solve for x
    x = 71,777,465.35/9,345.67
  6. Step 6: Final answer
    x = 7,680.29

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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.