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Finding the Fourth Proportional to 9,638.88, 13,303.08 and 6,102.42

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Solution

The fourth proportional to 9,638.88, 13,303.08 and 6,102.42 is: 8,422.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,638.88 : 13,303.08 = 6,102.42 : x
  2. Step 2: Convert to fraction form
    9,638.88/13,303.08 = 6,102.42/x
  3. Step 3: Cross multiply
    9,638.88x = 13,303.08 × 6,102.42
  4. Step 4: Simplify right side
    9,638.88x = 81,180,981.45
  5. Step 5: Solve for x
    x = 81,180,981.45/9,638.88
  6. Step 6: Final answer
    x = 8,422.24

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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.