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Finding the Fourth Proportional to 18,291.65, 25,242.27 and 10,736.64

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Solution

The fourth proportional to 18,291.65, 25,242.27 and 10,736.64 is: 14,816.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.65 : 25,242.27 = 10,736.64 : x
  2. Step 2: Convert to fraction form
    18,291.65/25,242.27 = 10,736.64/x
  3. Step 3: Cross multiply
    18,291.65x = 25,242.27 × 10,736.64
  4. Step 4: Simplify right side
    18,291.65x = 271,017,165.77
  5. Step 5: Solve for x
    x = 271,017,165.77/18,291.65
  6. Step 6: Final answer
    x = 14,816.45

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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.