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Finding the Fourth Proportional to 7,779.57, 10,736.02 and 4,755.18

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Solution

The fourth proportional to 7,779.57, 10,736.02 and 4,755.18 is: 6,562.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.57 : 10,736.02 = 4,755.18 : x
  2. Step 2: Convert to fraction form
    7,779.57/10,736.02 = 4,755.18/x
  3. Step 3: Cross multiply
    7,779.57x = 10,736.02 × 4,755.18
  4. Step 4: Simplify right side
    7,779.57x = 51,051,707.58
  5. Step 5: Solve for x
    x = 51,051,707.58/7,779.57
  6. Step 6: Final answer
    x = 6,562.28

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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.