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Finding the Fourth Proportional to 18,802.29, 25,946.27 and 11,252.78

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Solution

The fourth proportional to 18,802.29, 25,946.27 and 11,252.78 is: 15,528.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802.29 : 25,946.27 = 11,252.78 : x
  2. Step 2: Convert to fraction form
    18,802.29/25,946.27 = 11,252.78/x
  3. Step 3: Cross multiply
    18,802.29x = 25,946.27 × 11,252.78
  4. Step 4: Simplify right side
    18,802.29x = 291,967,668.13
  5. Step 5: Solve for x
    x = 291,967,668.13/18,802.29
  6. Step 6: Final answer
    x = 15,528.30

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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.