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Finding the Fourth Proportional to 32,485.44, 48,728.88 and 9,111.36

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Solution

The fourth proportional to 32,485.44, 48,728.88 and 9,111.36 is: 13,667.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,485.44 : 48,728.88 = 9,111.36 : x
  2. Step 2: Convert to fraction form
    32,485.44/48,728.88 = 9,111.36/x
  3. Step 3: Cross multiply
    32,485.44x = 48,728.88 × 9,111.36
  4. Step 4: Simplify right side
    32,485.44x = 443,986,368.08
  5. Step 5: Solve for x
    x = 443,986,368.08/32,485.44
  6. Step 6: Final answer
    x = 13,667.24

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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.