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Finding the Fourth Proportional to 43,194.60, 64,662.30 and 25,655.40

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Solution

The fourth proportional to 43,194.60, 64,662.30 and 25,655.40 is: 38,406.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,194.60 : 64,662.30 = 25,655.40 : x
  2. Step 2: Convert to fraction form
    43,194.60/64,662.30 = 25,655.40/x
  3. Step 3: Cross multiply
    43,194.60x = 64,662.30 × 25,655.40
  4. Step 4: Simplify right side
    43,194.60x = 1,658,937,171.42
  5. Step 5: Solve for x
    x = 1,658,937,171.42/43,194.60
  6. Step 6: Final answer
    x = 38,406.12

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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.