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Finding the Fourth Proportional to 8,603.91, 12,894.93 and 4,711.05

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Solution

The fourth proportional to 8,603.91, 12,894.93 and 4,711.05 is: 7,060.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.91 : 12,894.93 = 4,711.05 : x
  2. Step 2: Convert to fraction form
    8,603.91/12,894.93 = 4,711.05/x
  3. Step 3: Cross multiply
    8,603.91x = 12,894.93 × 4,711.05
  4. Step 4: Simplify right side
    8,603.91x = 60,748,659.98
  5. Step 5: Solve for x
    x = 60,748,659.98/8,603.91
  6. Step 6: Final answer
    x = 7,060.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.