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Finding the Fourth Proportional to 30,890.57, 46,335.85 and 8,701.06

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Solution

The fourth proportional to 30,890.57, 46,335.85 and 8,701.06 is: 13,051.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,890.57 : 46,335.85 = 8,701.06 : x
  2. Step 2: Convert to fraction form
    30,890.57/46,335.85 = 8,701.06/x
  3. Step 3: Cross multiply
    30,890.57x = 46,335.85 × 8,701.06
  4. Step 4: Simplify right side
    30,890.57x = 403,171,011.00
  5. Step 5: Solve for x
    x = 403,171,011.00/30,890.57
  6. Step 6: Final answer
    x = 13,051.59

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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.