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Finding the Fourth Proportional to 31,504.60, 47,256.90 and 25,964.20

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Solution

The fourth proportional to 31,504.60, 47,256.90 and 25,964.20 is: 38,946.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,504.60 : 47,256.90 = 25,964.20 : x
  2. Step 2: Convert to fraction form
    31,504.60/47,256.90 = 25,964.20/x
  3. Step 3: Cross multiply
    31,504.60x = 47,256.90 × 25,964.20
  4. Step 4: Simplify right side
    31,504.60x = 1,226,987,602.98
  5. Step 5: Solve for x
    x = 1,226,987,602.98/31,504.60
  6. Step 6: Final answer
    x = 38,946.30

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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.