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Finding the Fourth Proportional to 10,390.69, 15,588.51 and 2,995.03

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Solution

The fourth proportional to 10,390.69, 15,588.51 and 2,995.03 is: 4,493.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.69 : 15,588.51 = 2,995.03 : x
  2. Step 2: Convert to fraction form
    10,390.69/15,588.51 = 2,995.03/x
  3. Step 3: Cross multiply
    10,390.69x = 15,588.51 × 2,995.03
  4. Step 4: Simplify right side
    10,390.69x = 46,688,055.11
  5. Step 5: Solve for x
    x = 46,688,055.11/10,390.69
  6. Step 6: Final answer
    x = 4,493.26

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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.