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Finding the Fourth Proportional to 26,315.51, 39,473.28 and 7,339.40

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Solution

The fourth proportional to 26,315.51, 39,473.28 and 7,339.40 is: 11,009.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,315.51 : 39,473.28 = 7,339.40 : x
  2. Step 2: Convert to fraction form
    26,315.51/39,473.28 = 7,339.40/x
  3. Step 3: Cross multiply
    26,315.51x = 39,473.28 × 7,339.40
  4. Step 4: Simplify right side
    26,315.51x = 289,709,993.87
  5. Step 5: Solve for x
    x = 289,709,993.87/26,315.51
  6. Step 6: Final answer
    x = 11,009.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.