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Finding the Fourth Proportional to 9,355.88, 12,905.70 and 6,043.88

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Solution

The fourth proportional to 9,355.88, 12,905.70 and 6,043.88 is: 8,337.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,355.88 : 12,905.70 = 6,043.88 : x
  2. Step 2: Convert to fraction form
    9,355.88/12,905.70 = 6,043.88/x
  3. Step 3: Cross multiply
    9,355.88x = 12,905.70 × 6,043.88
  4. Step 4: Simplify right side
    9,355.88x = 78,000,502.12
  5. Step 5: Solve for x
    x = 78,000,502.12/9,355.88
  6. Step 6: Final answer
    x = 8,337.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.