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Finding the Fourth Proportional to 9,065.84, 12,512.09 and 5,087.18

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Solution

The fourth proportional to 9,065.84, 12,512.09 and 5,087.18 is: 7,021.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,065.84 : 12,512.09 = 5,087.18 : x
  2. Step 2: Convert to fraction form
    9,065.84/12,512.09 = 5,087.18/x
  3. Step 3: Cross multiply
    9,065.84x = 12,512.09 × 5,087.18
  4. Step 4: Simplify right side
    9,065.84x = 63,651,298.00
  5. Step 5: Solve for x
    x = 63,651,298.00/9,065.84
  6. Step 6: Final answer
    x = 7,021.01

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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.