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Finding the Fourth Proportional to 6,907.42, 9,530.89 and 4,779.64

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Solution

The fourth proportional to 6,907.42, 9,530.89 and 4,779.64 is: 6,594.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,907.42 : 9,530.89 = 4,779.64 : x
  2. Step 2: Convert to fraction form
    6,907.42/9,530.89 = 4,779.64/x
  3. Step 3: Cross multiply
    6,907.42x = 9,530.89 × 4,779.64
  4. Step 4: Simplify right side
    6,907.42x = 45,554,223.08
  5. Step 5: Solve for x
    x = 45,554,223.08/6,907.42
  6. Step 6: Final answer
    x = 6,594.97

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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.