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Finding the Fourth Proportional to 8,495.70, 12,732.78 and 4,800.00

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Solution

The fourth proportional to 8,495.70, 12,732.78 and 4,800.00 is: 7,193.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,495.70 : 12,732.78 = 4,800.00 : x
  2. Step 2: Convert to fraction form
    8,495.70/12,732.78 = 4,800.00/x
  3. Step 3: Cross multiply
    8,495.70x = 12,732.78 × 4,800.00
  4. Step 4: Simplify right side
    8,495.70x = 61,117,409.75
  5. Step 5: Solve for x
    x = 61,117,409.75/8,495.70
  6. Step 6: Final answer
    x = 7,193.93

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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.