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Finding the Fourth Proportional to 19,369.62, 29,054.70 and 5,518.62

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Solution

The fourth proportional to 19,369.62, 29,054.70 and 5,518.62 is: 8,278.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,369.62 : 29,054.70 = 5,518.62 : x
  2. Step 2: Convert to fraction form
    19,369.62/29,054.70 = 5,518.62/x
  3. Step 3: Cross multiply
    19,369.62x = 29,054.70 × 5,518.62
  4. Step 4: Simplify right side
    19,369.62x = 160,341,848.51
  5. Step 5: Solve for x
    x = 160,341,848.51/19,369.62
  6. Step 6: Final answer
    x = 8,278.01

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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.