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Finding the Fourth Proportional to 56,742.60, 85,113.90 and 14,622.60

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Solution

The fourth proportional to 56,742.60, 85,113.90 and 14,622.60 is: 21,933.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,742.60 : 85,113.90 = 14,622.60 : x
  2. Step 2: Convert to fraction form
    56,742.60/85,113.90 = 14,622.60/x
  3. Step 3: Cross multiply
    56,742.60x = 85,113.90 × 14,622.60
  4. Step 4: Simplify right side
    56,742.60x = 1,244,586,514.14
  5. Step 5: Solve for x
    x = 1,244,586,514.14/56,742.60
  6. Step 6: Final answer
    x = 21,933.90

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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.