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Finding the Fourth Proportional to 9,862.94, 13,612.63 and 5,884.32

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Solution

The fourth proportional to 9,862.94, 13,612.63 and 5,884.32 is: 8,121.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,862.94 : 13,612.63 = 5,884.32 : x
  2. Step 2: Convert to fraction form
    9,862.94/13,612.63 = 5,884.32/x
  3. Step 3: Cross multiply
    9,862.94x = 13,612.63 × 5,884.32
  4. Step 4: Simplify right side
    9,862.94x = 80,101,070.96
  5. Step 5: Solve for x
    x = 80,101,070.96/9,862.94
  6. Step 6: Final answer
    x = 8,121.42

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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.