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Finding the Fourth Proportional to 7,326.00, 10,109.48 and 4,139.67

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Solution

The fourth proportional to 7,326.00, 10,109.48 and 4,139.67 is: 5,712.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.00 : 10,109.48 = 4,139.67 : x
  2. Step 2: Convert to fraction form
    7,326.00/10,109.48 = 4,139.67/x
  3. Step 3: Cross multiply
    7,326.00x = 10,109.48 × 4,139.67
  4. Step 4: Simplify right side
    7,326.00x = 41,849,870.87
  5. Step 5: Solve for x
    x = 41,849,870.87/7,326.00
  6. Step 6: Final answer
    x = 5,712.51

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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.