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Finding the Fourth Proportional to 9,386.35, 12,955.35 and 6,200.22

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Solution

The fourth proportional to 9,386.35, 12,955.35 and 6,200.22 is: 8,557.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,386.35 : 12,955.35 = 6,200.22 : x
  2. Step 2: Convert to fraction form
    9,386.35/12,955.35 = 6,200.22/x
  3. Step 3: Cross multiply
    9,386.35x = 12,955.35 × 6,200.22
  4. Step 4: Simplify right side
    9,386.35x = 80,326,020.18
  5. Step 5: Solve for x
    x = 80,326,020.18/9,386.35
  6. Step 6: Final answer
    x = 8,557.75

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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.