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Finding the Fourth Proportional to 7,970.58, 12,015.56 and 7,435.37

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Solution

The fourth proportional to 7,970.58, 12,015.56 and 7,435.37 is: 11,208.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,970.58 : 12,015.56 = 7,435.37 : x
  2. Step 2: Convert to fraction form
    7,970.58/12,015.56 = 7,435.37/x
  3. Step 3: Cross multiply
    7,970.58x = 12,015.56 × 7,435.37
  4. Step 4: Simplify right side
    7,970.58x = 89,340,134.36
  5. Step 5: Solve for x
    x = 89,340,134.36/7,970.58
  6. Step 6: Final answer
    x = 11,208.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.