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Finding the Fourth Proportional to 8,746.55, 13,064.08 and 7,912.33

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Solution

The fourth proportional to 8,746.55, 13,064.08 and 7,912.33 is: 11,818.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,746.55 : 13,064.08 = 7,912.33 : x
  2. Step 2: Convert to fraction form
    8,746.55/13,064.08 = 7,912.33/x
  3. Step 3: Cross multiply
    8,746.55x = 13,064.08 × 7,912.33
  4. Step 4: Simplify right side
    8,746.55x = 103,367,259.75
  5. Step 5: Solve for x
    x = 103,367,259.75/8,746.55
  6. Step 6: Final answer
    x = 11,818.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.