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Finding the Fourth Proportional to 12,700.73, 19,051.79 and 5,297.73

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Solution

The fourth proportional to 12,700.73, 19,051.79 and 5,297.73 is: 7,946.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.73 : 19,051.79 = 5,297.73 : x
  2. Step 2: Convert to fraction form
    12,700.73/19,051.79 = 5,297.73/x
  3. Step 3: Cross multiply
    12,700.73x = 19,051.79 × 5,297.73
  4. Step 4: Simplify right side
    12,700.73x = 100,931,212.95
  5. Step 5: Solve for x
    x = 100,931,212.95/12,700.73
  6. Step 6: Final answer
    x = 7,946.89

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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.