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Finding the Fourth Proportional to 23,888.88, 32,968.44 and 13,281.12

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Solution

The fourth proportional to 23,888.88, 32,968.44 and 13,281.12 is: 18,328.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,888.88 : 32,968.44 = 13,281.12 : x
  2. Step 2: Convert to fraction form
    23,888.88/32,968.44 = 13,281.12/x
  3. Step 3: Cross multiply
    23,888.88x = 32,968.44 × 13,281.12
  4. Step 4: Simplify right side
    23,888.88x = 437,857,807.85
  5. Step 5: Solve for x
    x = 437,857,807.85/23,888.88
  6. Step 6: Final answer
    x = 18,328.94

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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.