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Finding the Fourth Proportional to 14,888.52, 20,525.40 and 12,190.32

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Solution

The fourth proportional to 14,888.52, 20,525.40 and 12,190.32 is: 16,805.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,888.52 : 20,525.40 = 12,190.32 : x
  2. Step 2: Convert to fraction form
    14,888.52/20,525.40 = 12,190.32/x
  3. Step 3: Cross multiply
    14,888.52x = 20,525.40 × 12,190.32
  4. Step 4: Simplify right side
    14,888.52x = 250,211,194.13
  5. Step 5: Solve for x
    x = 250,211,194.13/14,888.52
  6. Step 6: Final answer
    x = 16,805.65

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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.