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Finding the Fourth Proportional to 18,158.58, 27,242.73 and 7,068.47

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Solution

The fourth proportional to 18,158.58, 27,242.73 and 7,068.47 is: 10,604.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,158.58 : 27,242.73 = 7,068.47 : x
  2. Step 2: Convert to fraction form
    18,158.58/27,242.73 = 7,068.47/x
  3. Step 3: Cross multiply
    18,158.58x = 27,242.73 × 7,068.47
  4. Step 4: Simplify right side
    18,158.58x = 192,564,283.51
  5. Step 5: Solve for x
    x = 192,564,283.51/18,158.58
  6. Step 6: Final answer
    x = 10,604.59

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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.