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Finding the Fourth Proportional to 31,337.99, 47,011.37 and 9,152.99

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Solution

The fourth proportional to 31,337.99, 47,011.37 and 9,152.99 is: 13,730.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,337.99 : 47,011.37 = 9,152.99 : x
  2. Step 2: Convert to fraction form
    31,337.99/47,011.37 = 9,152.99/x
  3. Step 3: Cross multiply
    31,337.99x = 47,011.37 × 9,152.99
  4. Step 4: Simplify right side
    31,337.99x = 430,294,318.67
  5. Step 5: Solve for x
    x = 430,294,318.67/31,337.99
  6. Step 6: Final answer
    x = 13,730.76

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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.