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Finding the Fourth Proportional to 13,295.66, 18,347.99 and 7,327.32

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Solution

The fourth proportional to 13,295.66, 18,347.99 and 7,327.32 is: 10,111.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,295.66 : 18,347.99 = 7,327.32 : x
  2. Step 2: Convert to fraction form
    13,295.66/18,347.99 = 7,327.32/x
  3. Step 3: Cross multiply
    13,295.66x = 18,347.99 × 7,327.32
  4. Step 4: Simplify right side
    13,295.66x = 134,441,557.45
  5. Step 5: Solve for x
    x = 134,441,557.45/13,295.66
  6. Step 6: Final answer
    x = 10,111.69

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1.5x scale

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.