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Finding the Fourth Proportional to 31,808.70, 47,615.85 and 24,810.30

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Solution

The fourth proportional to 31,808.70, 47,615.85 and 24,810.30 is: 37,139.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,808.70 : 47,615.85 = 24,810.30 : x
  2. Step 2: Convert to fraction form
    31,808.70/47,615.85 = 24,810.30/x
  3. Step 3: Cross multiply
    31,808.70x = 47,615.85 × 24,810.30
  4. Step 4: Simplify right side
    31,808.70x = 1,181,363,523.26
  5. Step 5: Solve for x
    x = 1,181,363,523.26/31,808.70
  6. Step 6: Final answer
    x = 37,139.64

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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.