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Finding the Fourth Proportional to 19,605.92, 27,055.50 and 10,653.28

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Solution

The fourth proportional to 19,605.92, 27,055.50 and 10,653.28 is: 14,701.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.92 : 27,055.50 = 10,653.28 : x
  2. Step 2: Convert to fraction form
    19,605.92/27,055.50 = 10,653.28/x
  3. Step 3: Cross multiply
    19,605.92x = 27,055.50 × 10,653.28
  4. Step 4: Simplify right side
    19,605.92x = 288,229,817.04
  5. Step 5: Solve for x
    x = 288,229,817.04/19,605.92
  6. Step 6: Final answer
    x = 14,701.16

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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.