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Finding the Fourth Proportional to 12,866.04, 19,294.20 and 5,473.98

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Solution

The fourth proportional to 12,866.04, 19,294.20 and 5,473.98 is: 8,208.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,866.04 : 19,294.20 = 5,473.98 : x
  2. Step 2: Convert to fraction form
    12,866.04/19,294.20 = 5,473.98/x
  3. Step 3: Cross multiply
    12,866.04x = 19,294.20 × 5,473.98
  4. Step 4: Simplify right side
    12,866.04x = 105,616,064.92
  5. Step 5: Solve for x
    x = 105,616,064.92/12,866.04
  6. Step 6: Final answer
    x = 8,208.90

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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.