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Finding the Fourth Proportional to 9,993.16, 13,795.28 and 9,045.46

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Solution

The fourth proportional to 9,993.16, 13,795.28 and 9,045.46 is: 12,487.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.16 : 13,795.28 = 9,045.46 : x
  2. Step 2: Convert to fraction form
    9,993.16/13,795.28 = 9,045.46/x
  3. Step 3: Cross multiply
    9,993.16x = 13,795.28 × 9,045.46
  4. Step 4: Simplify right side
    9,993.16x = 124,784,653.43
  5. Step 5: Solve for x
    x = 124,784,653.43/9,993.16
  6. Step 6: Final answer
    x = 12,487.01

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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.