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Finding the Fourth Proportional to 8,835.61, 12,192.87 and 4,856.71

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Solution

The fourth proportional to 8,835.61, 12,192.87 and 4,856.71 is: 6,702.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,835.61 : 12,192.87 = 4,856.71 : x
  2. Step 2: Convert to fraction form
    8,835.61/12,192.87 = 4,856.71/x
  3. Step 3: Cross multiply
    8,835.61x = 12,192.87 × 4,856.71
  4. Step 4: Simplify right side
    8,835.61x = 59,217,233.66
  5. Step 5: Solve for x
    x = 59,217,233.66/8,835.61
  6. Step 6: Final answer
    x = 6,702.11

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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.