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Finding the Fourth Proportional to 34,978.65, 48,270.60 and 19,063.09

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Solution

The fourth proportional to 34,978.65, 48,270.60 and 19,063.09 is: 26,307.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,978.65 : 48,270.60 = 19,063.09 : x
  2. Step 2: Convert to fraction form
    34,978.65/48,270.60 = 19,063.09/x
  3. Step 3: Cross multiply
    34,978.65x = 48,270.60 × 19,063.09
  4. Step 4: Simplify right side
    34,978.65x = 920,186,792.15
  5. Step 5: Solve for x
    x = 920,186,792.15/34,978.65
  6. Step 6: Final answer
    x = 26,307.10

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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.