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Finding the Fourth Proportional to 12,907.94, 19,361.93 and 3,548.07

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Solution

The fourth proportional to 12,907.94, 19,361.93 and 3,548.07 is: 5,322.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,907.94 : 19,361.93 = 3,548.07 : x
  2. Step 2: Convert to fraction form
    12,907.94/19,361.93 = 3,548.07/x
  3. Step 3: Cross multiply
    12,907.94x = 19,361.93 × 3,548.07
  4. Step 4: Simplify right side
    12,907.94x = 68,697,465.23
  5. Step 5: Solve for x
    x = 68,697,465.23/12,907.94
  6. Step 6: Final answer
    x = 5,322.11

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Similar ratio
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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.