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Finding the Fourth Proportional to 72,325.60, 108,504.60 and 27,948.40

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Solution

The fourth proportional to 72,325.60, 108,504.60 and 27,948.40 is: 41,928.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,325.60 : 108,504.60 = 27,948.40 : x
  2. Step 2: Convert to fraction form
    72,325.60/108,504.60 = 27,948.40/x
  3. Step 3: Cross multiply
    72,325.60x = 108,504.60 × 27,948.40
  4. Step 4: Simplify right side
    72,325.60x = 3,032,529,962.64
  5. Step 5: Solve for x
    x = 3,032,529,962.64/72,325.60
  6. Step 6: Final answer
    x = 41,928.86

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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.