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Finding the Fourth Proportional to 12,248.94, 16,913.07 and 9,411.81

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Solution

The fourth proportional to 12,248.94, 16,913.07 and 9,411.81 is: 12,995.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248.94 : 16,913.07 = 9,411.81 : x
  2. Step 2: Convert to fraction form
    12,248.94/16,913.07 = 9,411.81/x
  3. Step 3: Cross multiply
    12,248.94x = 16,913.07 × 9,411.81
  4. Step 4: Simplify right side
    12,248.94x = 159,182,601.36
  5. Step 5: Solve for x
    x = 159,182,601.36/12,248.94
  6. Step 6: Final answer
    x = 12,995.62

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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.