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Finding the Fourth Proportional to 8,480.16, 11,702.76 and 4,703.48

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Solution

The fourth proportional to 8,480.16, 11,702.76 and 4,703.48 is: 6,490.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.16 : 11,702.76 = 4,703.48 : x
  2. Step 2: Convert to fraction form
    8,480.16/11,702.76 = 4,703.48/x
  3. Step 3: Cross multiply
    8,480.16x = 11,702.76 × 4,703.48
  4. Step 4: Simplify right side
    8,480.16x = 55,043,639.09
  5. Step 5: Solve for x
    x = 55,043,639.09/8,480.16
  6. Step 6: Final answer
    x = 6,490.87

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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.