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Finding the Fourth Proportional to 6,559.68, 9,051.60 and 3,907.20

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Solution

The fourth proportional to 6,559.68, 9,051.60 and 3,907.20 is: 5,391.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,559.68 : 9,051.60 = 3,907.20 : x
  2. Step 2: Convert to fraction form
    6,559.68/9,051.60 = 3,907.20/x
  3. Step 3: Cross multiply
    6,559.68x = 9,051.60 × 3,907.20
  4. Step 4: Simplify right side
    6,559.68x = 35,366,411.52
  5. Step 5: Solve for x
    x = 35,366,411.52/6,559.68
  6. Step 6: Final answer
    x = 5,391.48

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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.