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Finding the Fourth Proportional to 7,160.46, 9,881.10 and 4,016.58

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Solution

The fourth proportional to 7,160.46, 9,881.10 and 4,016.58 is: 5,542.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.46 : 9,881.10 = 4,016.58 : x
  2. Step 2: Convert to fraction form
    7,160.46/9,881.10 = 4,016.58/x
  3. Step 3: Cross multiply
    7,160.46x = 9,881.10 × 4,016.58
  4. Step 4: Simplify right side
    7,160.46x = 39,688,228.64
  5. Step 5: Solve for x
    x = 39,688,228.64/7,160.46
  6. Step 6: Final answer
    x = 5,542.69

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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.