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Finding the Fourth Proportional to 5,863.76, 8,779.08 and 4,687.76

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Solution

The fourth proportional to 5,863.76, 8,779.08 and 4,687.76 is: 7,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,863.76 : 8,779.08 = 4,687.76 : x
  2. Step 2: Convert to fraction form
    5,863.76/8,779.08 = 4,687.76/x
  3. Step 3: Cross multiply
    5,863.76x = 8,779.08 × 4,687.76
  4. Step 4: Simplify right side
    5,863.76x = 41,154,220.06
  5. Step 5: Solve for x
    x = 41,154,220.06/5,863.76
  6. Step 6: Final answer
    x = 7,018.40

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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.