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Finding the Fourth Proportional to 31,646.85, 47,462.98 and 9,459.74

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Solution

The fourth proportional to 31,646.85, 47,462.98 and 9,459.74 is: 14,187.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,646.85 : 47,462.98 = 9,459.74 : x
  2. Step 2: Convert to fraction form
    31,646.85/47,462.98 = 9,459.74/x
  3. Step 3: Cross multiply
    31,646.85x = 47,462.98 × 9,459.74
  4. Step 4: Simplify right side
    31,646.85x = 448,987,450.43
  5. Step 5: Solve for x
    x = 448,987,450.43/31,646.85
  6. Step 6: Final answer
    x = 14,187.43

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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.