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Finding the Fourth Proportional to 12,907.44, 19,358.73 and 5,009.94

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Solution

The fourth proportional to 12,907.44, 19,358.73 and 5,009.94 is: 7,513.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,907.44 : 19,358.73 = 5,009.94 : x
  2. Step 2: Convert to fraction form
    12,907.44/19,358.73 = 5,009.94/x
  3. Step 3: Cross multiply
    12,907.44x = 19,358.73 × 5,009.94
  4. Step 4: Simplify right side
    12,907.44x = 96,986,075.78
  5. Step 5: Solve for x
    x = 96,986,075.78/12,907.44
  6. Step 6: Final answer
    x = 7,513.97

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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.