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Finding the Fourth Proportional to 7,810.44, 11,703.54 and 4,879.92

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Solution

The fourth proportional to 7,810.44, 11,703.54 and 4,879.92 is: 7,312.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,810.44 : 11,703.54 = 4,879.92 : x
  2. Step 2: Convert to fraction form
    7,810.44/11,703.54 = 4,879.92/x
  3. Step 3: Cross multiply
    7,810.44x = 11,703.54 × 4,879.92
  4. Step 4: Simplify right side
    7,810.44x = 57,112,338.92
  5. Step 5: Solve for x
    x = 57,112,338.92/7,810.44
  6. Step 6: Final answer
    x = 7,312.31

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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.