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Finding the Fourth Proportional to 18,758.56, 25,887.74 and 10,802.04

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Solution

The fourth proportional to 18,758.56, 25,887.74 and 10,802.04 is: 14,907.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,758.56 : 25,887.74 = 10,802.04 : x
  2. Step 2: Convert to fraction form
    18,758.56/25,887.74 = 10,802.04/x
  3. Step 3: Cross multiply
    18,758.56x = 25,887.74 × 10,802.04
  4. Step 4: Simplify right side
    18,758.56x = 279,640,402.99
  5. Step 5: Solve for x
    x = 279,640,402.99/18,758.56
  6. Step 6: Final answer
    x = 14,907.35

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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.