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Finding the Fourth Proportional to 12,901.95, 19,353.95 and 5,506.47

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Solution

The fourth proportional to 12,901.95, 19,353.95 and 5,506.47 is: 8,260.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,901.95 : 19,353.95 = 5,506.47 : x
  2. Step 2: Convert to fraction form
    12,901.95/19,353.95 = 5,506.47/x
  3. Step 3: Cross multiply
    12,901.95x = 19,353.95 × 5,506.47
  4. Step 4: Simplify right side
    12,901.95x = 106,571,945.06
  5. Step 5: Solve for x
    x = 106,571,945.06/12,901.95
  6. Step 6: Final answer
    x = 8,260.14

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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.