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Finding the Fourth Proportional to 72,994.53, 109,491.56 and 17,590.53

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Solution

The fourth proportional to 72,994.53, 109,491.56 and 17,590.53 is: 26,385.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,994.53 : 109,491.56 = 17,590.53 : x
  2. Step 2: Convert to fraction form
    72,994.53/109,491.56 = 17,590.53/x
  3. Step 3: Cross multiply
    72,994.53x = 109,491.56 × 17,590.53
  4. Step 4: Simplify right side
    72,994.53x = 1,926,014,482.97
  5. Step 5: Solve for x
    x = 1,926,014,482.97/72,994.53
  6. Step 6: Final answer
    x = 26,385.74

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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.