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Finding the Fourth Proportional to 7,970.48, 11,960.88 and 3,353.52

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Solution

The fourth proportional to 7,970.48, 11,960.88 and 3,353.52 is: 5,032.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,970.48 : 11,960.88 = 3,353.52 : x
  2. Step 2: Convert to fraction form
    7,970.48/11,960.88 = 3,353.52/x
  3. Step 3: Cross multiply
    7,970.48x = 11,960.88 × 3,353.52
  4. Step 4: Simplify right side
    7,970.48x = 40,111,050.30
  5. Step 5: Solve for x
    x = 40,111,050.30/7,970.48
  6. Step 6: Final answer
    x = 5,032.45

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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.