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Finding the Fourth Proportional to 28,852.56, 39,837.62 and 18,649.63

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Solution

The fourth proportional to 28,852.56, 39,837.62 and 18,649.63 is: 25,750.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,852.56 : 39,837.62 = 18,649.63 : x
  2. Step 2: Convert to fraction form
    28,852.56/39,837.62 = 18,649.63/x
  3. Step 3: Cross multiply
    28,852.56x = 39,837.62 × 18,649.63
  4. Step 4: Simplify right side
    28,852.56x = 742,956,873.08
  5. Step 5: Solve for x
    x = 742,956,873.08/28,852.56
  6. Step 6: Final answer
    x = 25,750.12

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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.