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Finding the Fourth Proportional to 5,779.14, 7,975.16 and 4,521.48

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Solution

The fourth proportional to 5,779.14, 7,975.16 and 4,521.48 is: 6,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,779.14 : 7,975.16 = 4,521.48 : x
  2. Step 2: Convert to fraction form
    5,779.14/7,975.16 = 4,521.48/x
  3. Step 3: Cross multiply
    5,779.14x = 7,975.16 × 4,521.48
  4. Step 4: Simplify right side
    5,779.14x = 36,059,526.44
  5. Step 5: Solve for x
    x = 36,059,526.44/5,779.14
  6. Step 6: Final answer
    x = 6,239.60

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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.