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Finding the Fourth Proportional to 8,485.55, 11,710.13 and 4,708.97

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Solution

The fourth proportional to 8,485.55, 11,710.13 and 4,708.97 is: 6,498.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.55 : 11,710.13 = 4,708.97 : x
  2. Step 2: Convert to fraction form
    8,485.55/11,710.13 = 4,708.97/x
  3. Step 3: Cross multiply
    8,485.55x = 11,710.13 × 4,708.97
  4. Step 4: Simplify right side
    8,485.55x = 55,142,568.77
  5. Step 5: Solve for x
    x = 55,142,568.77/8,485.55
  6. Step 6: Final answer
    x = 6,498.41

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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.