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Finding the Fourth Proportional to 15,053.95, 20,772.01 and 9,006.69

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Solution

The fourth proportional to 15,053.95, 20,772.01 and 9,006.69 is: 12,427.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053.95 : 20,772.01 = 9,006.69 : x
  2. Step 2: Convert to fraction form
    15,053.95/20,772.01 = 9,006.69/x
  3. Step 3: Cross multiply
    15,053.95x = 20,772.01 × 9,006.69
  4. Step 4: Simplify right side
    15,053.95x = 187,087,054.75
  5. Step 5: Solve for x
    x = 187,087,054.75/15,053.95
  6. Step 6: Final answer
    x = 12,427.77

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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.