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Finding the Fourth Proportional to 64,907.85, 97,389.12 and 35,346.90

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Solution

The fourth proportional to 64,907.85, 97,389.12 and 35,346.90 is: 53,035.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,907.85 : 97,389.12 = 35,346.90 : x
  2. Step 2: Convert to fraction form
    64,907.85/97,389.12 = 35,346.90/x
  3. Step 3: Cross multiply
    64,907.85x = 97,389.12 × 35,346.90
  4. Step 4: Simplify right side
    64,907.85x = 3,442,403,308.99
  5. Step 5: Solve for x
    x = 3,442,403,308.99/64,907.85
  6. Step 6: Final answer
    x = 53,035.24

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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.