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Finding the Fourth Proportional to 9,134.40, 13,717.80 and 7,059.45

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Solution

The fourth proportional to 9,134.40, 13,717.80 and 7,059.45 is: 10,601.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,134.40 : 13,717.80 = 7,059.45 : x
  2. Step 2: Convert to fraction form
    9,134.40/13,717.80 = 7,059.45/x
  3. Step 3: Cross multiply
    9,134.40x = 13,717.80 × 7,059.45
  4. Step 4: Simplify right side
    9,134.40x = 96,840,123.21
  5. Step 5: Solve for x
    x = 96,840,123.21/9,134.40
  6. Step 6: Final answer
    x = 10,601.70

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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.