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Finding the Fourth Proportional to 18,452.55, 27,678.98 and 5,304.93

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Solution

The fourth proportional to 18,452.55, 27,678.98 and 5,304.93 is: 7,957.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,452.55 : 27,678.98 = 5,304.93 : x
  2. Step 2: Convert to fraction form
    18,452.55/27,678.98 = 5,304.93/x
  3. Step 3: Cross multiply
    18,452.55x = 27,678.98 × 5,304.93
  4. Step 4: Simplify right side
    18,452.55x = 146,835,051.37
  5. Step 5: Solve for x
    x = 146,835,051.37/18,452.55
  6. Step 6: Final answer
    x = 7,957.44

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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.