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Finding the Fourth Proportional to 9,294.51, 12,813.84 and 7,015.95

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Solution

The fourth proportional to 9,294.51, 12,813.84 and 7,015.95 is: 9,672.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,294.51 : 12,813.84 = 7,015.95 : x
  2. Step 2: Convert to fraction form
    9,294.51/12,813.84 = 7,015.95/x
  3. Step 3: Cross multiply
    9,294.51x = 12,813.84 × 7,015.95
  4. Step 4: Simplify right side
    9,294.51x = 89,901,260.75
  5. Step 5: Solve for x
    x = 89,901,260.75/9,294.51
  6. Step 6: Final answer
    x = 9,672.51

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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.