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Finding the Fourth Proportional to 5,779.29, 8,658.59 and 4,949.45

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Solution

The fourth proportional to 5,779.29, 8,658.59 and 4,949.45 is: 7,415.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,779.29 : 8,658.59 = 4,949.45 : x
  2. Step 2: Convert to fraction form
    5,779.29/8,658.59 = 4,949.45/x
  3. Step 3: Cross multiply
    5,779.29x = 8,658.59 × 4,949.45
  4. Step 4: Simplify right side
    5,779.29x = 42,855,258.28
  5. Step 5: Solve for x
    x = 42,855,258.28/5,779.29
  6. Step 6: Final answer
    x = 7,415.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.