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Finding the Fourth Proportional to 59,670, 89,505.54 and 18,117

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Solution

The fourth proportional to 59,670, 89,505.54 and 18,117 is: 27,175.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,670 : 89,505.54 = 18,117 : x
  2. Step 2: Convert to fraction form
    59,670/89,505.54 = 18,117/x
  3. Step 3: Cross multiply
    59,670x = 89,505.54 × 18,117
  4. Step 4: Simplify right side
    59,670x = 1,621,571,868.18
  5. Step 5: Solve for x
    x = 1,621,571,868.18/59,670
  6. Step 6: Final answer
    x = 27,175.66

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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.