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Finding the Fourth Proportional to 12,534.96, 18,802.96 and 10,339.60

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Solution

The fourth proportional to 12,534.96, 18,802.96 and 10,339.60 is: 15,509.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,534.96 : 18,802.96 = 10,339.60 : x
  2. Step 2: Convert to fraction form
    12,534.96/18,802.96 = 10,339.60/x
  3. Step 3: Cross multiply
    12,534.96x = 18,802.96 × 10,339.60
  4. Step 4: Simplify right side
    12,534.96x = 194,415,085.22
  5. Step 5: Solve for x
    x = 194,415,085.22/12,534.96
  6. Step 6: Final answer
    x = 15,509.83

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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.