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Finding the Fourth Proportional to 8,705.88, 12,014.22 and 4,727.06

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Solution

The fourth proportional to 8,705.88, 12,014.22 and 4,727.06 is: 6,523.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.88 : 12,014.22 = 4,727.06 : x
  2. Step 2: Convert to fraction form
    8,705.88/12,014.22 = 4,727.06/x
  3. Step 3: Cross multiply
    8,705.88x = 12,014.22 × 4,727.06
  4. Step 4: Simplify right side
    8,705.88x = 56,791,941.50
  5. Step 5: Solve for x
    x = 56,791,941.50/8,705.88
  6. Step 6: Final answer
    x = 6,523.40

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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.