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Finding the Fourth Proportional to 9,357.40, 12,907.80 and 5,999.04

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Solution

The fourth proportional to 9,357.40, 12,907.80 and 5,999.04 is: 8,275.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,357.40 : 12,907.80 = 5,999.04 : x
  2. Step 2: Convert to fraction form
    9,357.40/12,907.80 = 5,999.04/x
  3. Step 3: Cross multiply
    9,357.40x = 12,907.80 × 5,999.04
  4. Step 4: Simplify right side
    9,357.40x = 77,434,408.51
  5. Step 5: Solve for x
    x = 77,434,408.51/9,357.40
  6. Step 6: Final answer
    x = 8,275.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.