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Finding the Fourth Proportional to 14,901.66, 20,557.11 and 9,594.78

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Solution

The fourth proportional to 14,901.66, 20,557.11 and 9,594.78 is: 13,236.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,901.66 : 20,557.11 = 9,594.78 : x
  2. Step 2: Convert to fraction form
    14,901.66/20,557.11 = 9,594.78/x
  3. Step 3: Cross multiply
    14,901.66x = 20,557.11 × 9,594.78
  4. Step 4: Simplify right side
    14,901.66x = 197,240,947.89
  5. Step 5: Solve for x
    x = 197,240,947.89/14,901.66
  6. Step 6: Final answer
    x = 13,236.17

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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.