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Finding the Fourth Proportional to 38,656.58, 57,992.16 and 12,354.26

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Solution

The fourth proportional to 38,656.58, 57,992.16 and 12,354.26 is: 18,533.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,656.58 : 57,992.16 = 12,354.26 : x
  2. Step 2: Convert to fraction form
    38,656.58/57,992.16 = 12,354.26/x
  3. Step 3: Cross multiply
    38,656.58x = 57,992.16 × 12,354.26
  4. Step 4: Simplify right side
    38,656.58x = 716,450,222.60
  5. Step 5: Solve for x
    x = 716,450,222.60/38,656.58
  6. Step 6: Final answer
    x = 18,533.72

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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.