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Finding the Fourth Proportional to 66,596.53, 99,894.04 and 19,210.06

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Solution

The fourth proportional to 66,596.53, 99,894.04 and 19,210.06 is: 28,814.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,596.53 : 99,894.04 = 19,210.06 : x
  2. Step 2: Convert to fraction form
    66,596.53/99,894.04 = 19,210.06/x
  3. Step 3: Cross multiply
    66,596.53x = 99,894.04 × 19,210.06
  4. Step 4: Simplify right side
    66,596.53x = 1,918,970,701.35
  5. Step 5: Solve for x
    x = 1,918,970,701.35/66,596.53
  6. Step 6: Final answer
    x = 28,814.87

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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.