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Finding the Fourth Proportional to 13,073.64, 19,472.06 and 13,009.92

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Solution

The fourth proportional to 13,073.64, 19,472.06 and 13,009.92 is: 19,377.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,073.64 : 19,472.06 = 13,009.92 : x
  2. Step 2: Convert to fraction form
    13,073.64/19,472.06 = 13,009.92/x
  3. Step 3: Cross multiply
    13,073.64x = 19,472.06 × 13,009.92
  4. Step 4: Simplify right side
    13,073.64x = 253,329,942.84
  5. Step 5: Solve for x
    x = 253,329,942.84/13,073.64
  6. Step 6: Final answer
    x = 19,377.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.