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Finding the Fourth Proportional to 9,906.70, 14,864.88 and 4,359.34

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Solution

The fourth proportional to 9,906.70, 14,864.88 and 4,359.34 is: 6,541.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,906.70 : 14,864.88 = 4,359.34 : x
  2. Step 2: Convert to fraction form
    9,906.70/14,864.88 = 4,359.34/x
  3. Step 3: Cross multiply
    9,906.70x = 14,864.88 × 4,359.34
  4. Step 4: Simplify right side
    9,906.70x = 64,801,044.18
  5. Step 5: Solve for x
    x = 64,801,044.18/9,906.70
  6. Step 6: Final answer
    x = 6,541.14

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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.