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Finding the Fourth Proportional to 55,015.40, 82,509.88 and 25,404.76

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Solution

The fourth proportional to 55,015.40, 82,509.88 and 25,404.76 is: 38,101.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,015.40 : 82,509.88 = 25,404.76 : x
  2. Step 2: Convert to fraction form
    55,015.40/82,509.88 = 25,404.76/x
  3. Step 3: Cross multiply
    55,015.40x = 82,509.88 × 25,404.76
  4. Step 4: Simplify right side
    55,015.40x = 2,096,143,699.03
  5. Step 5: Solve for x
    x = 2,096,143,699.03/55,015.40
  6. Step 6: Final answer
    x = 38,101.04

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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.