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Finding the Fourth Proportional to 13,753.94, 18,980.53 and 7,466.31

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Solution

The fourth proportional to 13,753.94, 18,980.53 and 7,466.31 is: 10,303.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,753.94 : 18,980.53 = 7,466.31 : x
  2. Step 2: Convert to fraction form
    13,753.94/18,980.53 = 7,466.31/x
  3. Step 3: Cross multiply
    13,753.94x = 18,980.53 × 7,466.31
  4. Step 4: Simplify right side
    13,753.94x = 141,714,502.28
  5. Step 5: Solve for x
    x = 141,714,502.28/13,753.94
  6. Step 6: Final answer
    x = 10,303.56

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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.