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Finding the Fourth Proportional to 8,813.07, 12,164.15 and 5,985.16

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Solution

The fourth proportional to 8,813.07, 12,164.15 and 5,985.16 is: 8,260.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.07 : 12,164.15 = 5,985.16 : x
  2. Step 2: Convert to fraction form
    8,813.07/12,164.15 = 5,985.16/x
  3. Step 3: Cross multiply
    8,813.07x = 12,164.15 × 5,985.16
  4. Step 4: Simplify right side
    8,813.07x = 72,804,368.57
  5. Step 5: Solve for x
    x = 72,804,368.57/8,813.07
  6. Step 6: Final answer
    x = 8,260.95

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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.