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Finding the Fourth Proportional to 7,689.54, 10,609.83 and 4,332.18

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Solution

The fourth proportional to 7,689.54, 10,609.83 and 4,332.18 is: 5,977.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,689.54 : 10,609.83 = 4,332.18 : x
  2. Step 2: Convert to fraction form
    7,689.54/10,609.83 = 4,332.18/x
  3. Step 3: Cross multiply
    7,689.54x = 10,609.83 × 4,332.18
  4. Step 4: Simplify right side
    7,689.54x = 45,963,693.33
  5. Step 5: Solve for x
    x = 45,963,693.33/7,689.54
  6. Step 6: Final answer
    x = 5,977.43

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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.