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Finding the Fourth Proportional to 14,710.13, 20,316.65 and 9,696.62

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Solution

The fourth proportional to 14,710.13, 20,316.65 and 9,696.62 is: 13,392.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,710.13 : 20,316.65 = 9,696.62 : x
  2. Step 2: Convert to fraction form
    14,710.13/20,316.65 = 9,696.62/x
  3. Step 3: Cross multiply
    14,710.13x = 20,316.65 × 9,696.62
  4. Step 4: Simplify right side
    14,710.13x = 197,002,834.72
  5. Step 5: Solve for x
    x = 197,002,834.72/14,710.13
  6. Step 6: Final answer
    x = 13,392.32

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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.