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Finding the Fourth Proportional to 45,532, 62,851.44 and 30,636.64

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Solution

The fourth proportional to 45,532, 62,851.44 and 30,636.64 is: 42,290.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,532 : 62,851.44 = 30,636.64 : x
  2. Step 2: Convert to fraction form
    45,532/62,851.44 = 30,636.64/x
  3. Step 3: Cross multiply
    45,532x = 62,851.44 × 30,636.64
  4. Step 4: Simplify right side
    45,532x = 1,925,556,940.76
  5. Step 5: Solve for x
    x = 1,925,556,940.76/45,532
  6. Step 6: Final answer
    x = 42,290.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.