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Finding the Fourth Proportional to 57,603.76, 86,459.63 and 35,460.38

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Solution

The fourth proportional to 57,603.76, 86,459.63 and 35,460.38 is: 53,223.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,603.76 : 86,459.63 = 35,460.38 : x
  2. Step 2: Convert to fraction form
    57,603.76/86,459.63 = 35,460.38/x
  3. Step 3: Cross multiply
    57,603.76x = 86,459.63 × 35,460.38
  4. Step 4: Simplify right side
    57,603.76x = 3,065,891,473.04
  5. Step 5: Solve for x
    x = 3,065,891,473.04/57,603.76
  6. Step 6: Final answer
    x = 53,223.81

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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.