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Finding the Fourth Proportional to 43,208.42, 64,802.90 and 15,506.42

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Solution

The fourth proportional to 43,208.42, 64,802.90 and 15,506.42 is: 23,256.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,208.42 : 64,802.90 = 15,506.42 : x
  2. Step 2: Convert to fraction form
    43,208.42/64,802.90 = 15,506.42/x
  3. Step 3: Cross multiply
    43,208.42x = 64,802.90 × 15,506.42
  4. Step 4: Simplify right side
    43,208.42x = 1,004,860,907.09
  5. Step 5: Solve for x
    x = 1,004,860,907.09/43,208.42
  6. Step 6: Final answer
    x = 23,256.14

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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.