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Finding the Fourth Proportional to 19,060.55, 28,602.07 and 7,966.39

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Solution

The fourth proportional to 19,060.55, 28,602.07 and 7,966.39 is: 11,954.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,060.55 : 28,602.07 = 7,966.39 : x
  2. Step 2: Convert to fraction form
    19,060.55/28,602.07 = 7,966.39/x
  3. Step 3: Cross multiply
    19,060.55x = 28,602.07 × 7,966.39
  4. Step 4: Simplify right side
    19,060.55x = 227,855,244.43
  5. Step 5: Solve for x
    x = 227,855,244.43/19,060.55
  6. Step 6: Final answer
    x = 11,954.28

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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.