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Finding the Fourth Proportional to 14,452.35, 21,678.22 and 6,661.16

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Solution

The fourth proportional to 14,452.35, 21,678.22 and 6,661.16 is: 9,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,452.35 : 21,678.22 = 6,661.16 : x
  2. Step 2: Convert to fraction form
    14,452.35/21,678.22 = 6,661.16/x
  3. Step 3: Cross multiply
    14,452.35x = 21,678.22 × 6,661.16
  4. Step 4: Simplify right side
    14,452.35x = 144,402,091.94
  5. Step 5: Solve for x
    x = 144,402,091.94/14,452.35
  6. Step 6: Final answer
    x = 9,991.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.