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Finding the Fourth Proportional to 12,704.69, 17,521.65 and 10,047.49

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Solution

The fourth proportional to 12,704.69, 17,521.65 and 10,047.49 is: 13,856.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,704.69 : 17,521.65 = 10,047.49 : x
  2. Step 2: Convert to fraction form
    12,704.69/17,521.65 = 10,047.49/x
  3. Step 3: Cross multiply
    12,704.69x = 17,521.65 × 10,047.49
  4. Step 4: Simplify right side
    12,704.69x = 176,048,603.16
  5. Step 5: Solve for x
    x = 176,048,603.16/12,704.69
  6. Step 6: Final answer
    x = 13,856.98

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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.