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Finding the Fourth Proportional to 18,157.49, 27,225.74 and 7,051.19

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Solution

The fourth proportional to 18,157.49, 27,225.74 and 7,051.19 is: 10,572.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157.49 : 27,225.74 = 7,051.19 : x
  2. Step 2: Convert to fraction form
    18,157.49/27,225.74 = 7,051.19/x
  3. Step 3: Cross multiply
    18,157.49x = 27,225.74 × 7,051.19
  4. Step 4: Simplify right side
    18,157.49x = 191,973,694.25
  5. Step 5: Solve for x
    x = 191,973,694.25/18,157.49
  6. Step 6: Final answer
    x = 10,572.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.