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Finding the Fourth Proportional to 9,368.73, 12,906.89 and 6,530.95

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Solution

The fourth proportional to 9,368.73, 12,906.89 and 6,530.95 is: 8,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,368.73 : 12,906.89 = 6,530.95 : x
  2. Step 2: Convert to fraction form
    9,368.73/12,906.89 = 6,530.95/x
  3. Step 3: Cross multiply
    9,368.73x = 12,906.89 × 6,530.95
  4. Step 4: Simplify right side
    9,368.73x = 84,294,225.35
  5. Step 5: Solve for x
    x = 84,294,225.35/9,368.73
  6. Step 6: Final answer
    x = 8,997.40

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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.