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Finding the Fourth Proportional to 64,880.64, 97,359.36 and 27,438.60

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Solution

The fourth proportional to 64,880.64, 97,359.36 and 27,438.60 is: 41,174.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,880.64 : 97,359.36 = 27,438.60 : x
  2. Step 2: Convert to fraction form
    64,880.64/97,359.36 = 27,438.60/x
  3. Step 3: Cross multiply
    64,880.64x = 97,359.36 × 27,438.60
  4. Step 4: Simplify right side
    64,880.64x = 2,671,404,535.30
  5. Step 5: Solve for x
    x = 2,671,404,535.30/64,880.64
  6. Step 6: Final answer
    x = 41,174.14

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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.