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Finding the Fourth Proportional to 8,556.75, 11,807.19 and 4,779.45

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Solution

The fourth proportional to 8,556.75, 11,807.19 and 4,779.45 is: 6,595.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.75 : 11,807.19 = 4,779.45 : x
  2. Step 2: Convert to fraction form
    8,556.75/11,807.19 = 4,779.45/x
  3. Step 3: Cross multiply
    8,556.75x = 11,807.19 × 4,779.45
  4. Step 4: Simplify right side
    8,556.75x = 56,431,874.25
  5. Step 5: Solve for x
    x = 56,431,874.25/8,556.75
  6. Step 6: Final answer
    x = 6,595.01

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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.