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Finding the Fourth Proportional to 16,557, 24,835.50 and 4,245

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Solution

The fourth proportional to 16,557, 24,835.50 and 4,245 is: 6,367.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,557 : 24,835.50 = 4,245 : x
  2. Step 2: Convert to fraction form
    16,557/24,835.50 = 4,245/x
  3. Step 3: Cross multiply
    16,557x = 24,835.50 × 4,245
  4. Step 4: Simplify right side
    16,557x = 105,426,697.50
  5. Step 5: Solve for x
    x = 105,426,697.50/16,557
  6. Step 6: Final answer
    x = 6,367.50

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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.