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Finding the Fourth Proportional to 28,262.50, 42,393.76 and 9,794.50

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Solution

The fourth proportional to 28,262.50, 42,393.76 and 9,794.50 is: 14,691.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262.50 : 42,393.76 = 9,794.50 : x
  2. Step 2: Convert to fraction form
    28,262.50/42,393.76 = 9,794.50/x
  3. Step 3: Cross multiply
    28,262.50x = 42,393.76 × 9,794.50
  4. Step 4: Simplify right side
    28,262.50x = 415,225,682.32
  5. Step 5: Solve for x
    x = 415,225,682.32/28,262.50
  6. Step 6: Final answer
    x = 14,691.75

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1.5x scale

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.