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Finding the Fourth Proportional to 9,153.65, 12,625.39 and 7,005.03

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Solution

The fourth proportional to 9,153.65, 12,625.39 and 7,005.03 is: 9,661.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153.65 : 12,625.39 = 7,005.03 : x
  2. Step 2: Convert to fraction form
    9,153.65/12,625.39 = 7,005.03/x
  3. Step 3: Cross multiply
    9,153.65x = 12,625.39 × 7,005.03
  4. Step 4: Simplify right side
    9,153.65x = 88,441,243.51
  5. Step 5: Solve for x
    x = 88,441,243.51/9,153.65
  6. Step 6: Final answer
    x = 9,661.86

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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.