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Finding the Fourth Proportional to 69,005.66, 103,492.01 and 19,084.68

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Solution

The fourth proportional to 69,005.66, 103,492.01 and 19,084.68 is: 28,622.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,005.66 : 103,492.01 = 19,084.68 : x
  2. Step 2: Convert to fraction form
    69,005.66/103,492.01 = 19,084.68/x
  3. Step 3: Cross multiply
    69,005.66x = 103,492.01 × 19,084.68
  4. Step 4: Simplify right side
    69,005.66x = 1,975,111,941.12
  5. Step 5: Solve for x
    x = 1,975,111,941.12/69,005.66
  6. Step 6: Final answer
    x = 28,622.46

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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.