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Finding the Fourth Proportional to 13,552.65, 18,710.18 and 9,306.22

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Solution

The fourth proportional to 13,552.65, 18,710.18 and 9,306.22 is: 12,847.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,552.65 : 18,710.18 = 9,306.22 : x
  2. Step 2: Convert to fraction form
    13,552.65/18,710.18 = 9,306.22/x
  3. Step 3: Cross multiply
    13,552.65x = 18,710.18 × 9,306.22
  4. Step 4: Simplify right side
    13,552.65x = 174,121,051.32
  5. Step 5: Solve for x
    x = 174,121,051.32/13,552.65
  6. Step 6: Final answer
    x = 12,847.75

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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.