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Finding the Fourth Proportional to 12,572.08, 18,866.07 and 7,029.06

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Solution

The fourth proportional to 12,572.08, 18,866.07 and 7,029.06 is: 10,548.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572.08 : 18,866.07 = 7,029.06 : x
  2. Step 2: Convert to fraction form
    12,572.08/18,866.07 = 7,029.06/x
  3. Step 3: Cross multiply
    12,572.08x = 18,866.07 × 7,029.06
  4. Step 4: Simplify right side
    12,572.08x = 132,610,737.99
  5. Step 5: Solve for x
    x = 132,610,737.99/12,572.08
  6. Step 6: Final answer
    x = 10,548.03

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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.