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Finding the Fourth Proportional to 12,237.50, 16,887.81 and 7,201.93

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Solution

The fourth proportional to 12,237.50, 16,887.81 and 7,201.93 is: 9,938.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.50 : 16,887.81 = 7,201.93 : x
  2. Step 2: Convert to fraction form
    12,237.50/16,887.81 = 7,201.93/x
  3. Step 3: Cross multiply
    12,237.50x = 16,887.81 × 7,201.93
  4. Step 4: Simplify right side
    12,237.50x = 121,624,825.47
  5. Step 5: Solve for x
    x = 121,624,825.47/12,237.50
  6. Step 6: Final answer
    x = 9,938.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.