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Finding the Fourth Proportional to 38,056.68, 52,519.68 and 21,289.68

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Solution

The fourth proportional to 38,056.68, 52,519.68 and 21,289.68 is: 29,380.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,056.68 : 52,519.68 = 21,289.68 : x
  2. Step 2: Convert to fraction form
    38,056.68/52,519.68 = 21,289.68/x
  3. Step 3: Cross multiply
    38,056.68x = 52,519.68 × 21,289.68
  4. Step 4: Simplify right side
    38,056.68x = 1,118,127,180.90
  5. Step 5: Solve for x
    x = 1,118,127,180.90/38,056.68
  6. Step 6: Final answer
    x = 29,380.58

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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.