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Finding the Fourth Proportional to 7,091.54, 9,783.48 and 4,259.07

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Solution

The fourth proportional to 7,091.54, 9,783.48 and 4,259.07 is: 5,875.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.54 : 9,783.48 = 4,259.07 : x
  2. Step 2: Convert to fraction form
    7,091.54/9,783.48 = 4,259.07/x
  3. Step 3: Cross multiply
    7,091.54x = 9,783.48 × 4,259.07
  4. Step 4: Simplify right side
    7,091.54x = 41,668,542.14
  5. Step 5: Solve for x
    x = 41,668,542.14/7,091.54
  6. Step 6: Final answer
    x = 5,875.81

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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.