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Finding the Fourth Proportional to 7,937.54, 11,903.93 and 4,980.47

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Solution

The fourth proportional to 7,937.54, 11,903.93 and 4,980.47 is: 7,469.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.54 : 11,903.93 = 4,980.47 : x
  2. Step 2: Convert to fraction form
    7,937.54/11,903.93 = 4,980.47/x
  3. Step 3: Cross multiply
    7,937.54x = 11,903.93 × 4,980.47
  4. Step 4: Simplify right side
    7,937.54x = 59,287,141.34
  5. Step 5: Solve for x
    x = 59,287,141.34/7,937.54
  6. Step 6: Final answer
    x = 7,469.21

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1.5x scale

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.