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Finding the Fourth Proportional to 8,907.40, 13,361.10 and 3,360.93

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Solution

The fourth proportional to 8,907.40, 13,361.10 and 3,360.93 is: 5,041.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.40 : 13,361.10 = 3,360.93 : x
  2. Step 2: Convert to fraction form
    8,907.40/13,361.10 = 3,360.93/x
  3. Step 3: Cross multiply
    8,907.40x = 13,361.10 × 3,360.93
  4. Step 4: Simplify right side
    8,907.40x = 44,905,721.82
  5. Step 5: Solve for x
    x = 44,905,721.82/8,907.40
  6. Step 6: Final answer
    x = 5,041.40

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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.