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Finding the Fourth Proportional to 30,851, 46,256.90 and 26,172.62

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Solution

The fourth proportional to 30,851, 46,256.90 and 26,172.62 is: 39,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,851 : 46,256.90 = 26,172.62 : x
  2. Step 2: Convert to fraction form
    30,851/46,256.90 = 26,172.62/x
  3. Step 3: Cross multiply
    30,851x = 46,256.90 × 26,172.62
  4. Step 4: Simplify right side
    30,851x = 1,210,664,266.08
  5. Step 5: Solve for x
    x = 1,210,664,266.08/30,851
  6. Step 6: Final answer
    x = 39,242.30

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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.