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Finding the Fourth Proportional to 7,035.47, 9,708.94 and 3,848.70

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Solution

The fourth proportional to 7,035.47, 9,708.94 and 3,848.70 is: 5,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,035.47 : 9,708.94 = 3,848.70 : x
  2. Step 2: Convert to fraction form
    7,035.47/9,708.94 = 3,848.70/x
  3. Step 3: Cross multiply
    7,035.47x = 9,708.94 × 3,848.70
  4. Step 4: Simplify right side
    7,035.47x = 37,366,838.60
  5. Step 5: Solve for x
    x = 37,366,838.60/7,035.47
  6. Step 6: Final answer
    x = 5,311.21

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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.