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Finding the Fourth Proportional to 7,491.70, 11,225.40 and 4,713.40

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Solution

The fourth proportional to 7,491.70, 11,225.40 and 4,713.40 is: 7,062.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.70 : 11,225.40 = 4,713.40 : x
  2. Step 2: Convert to fraction form
    7,491.70/11,225.40 = 4,713.40/x
  3. Step 3: Cross multiply
    7,491.70x = 11,225.40 × 4,713.40
  4. Step 4: Simplify right side
    7,491.70x = 52,909,800.36
  5. Step 5: Solve for x
    x = 52,909,800.36/7,491.70
  6. Step 6: Final answer
    x = 7,062.46

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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.