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Finding the Fourth Proportional to 9,357.70, 14,040.60 and 4,740.70

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Solution

The fourth proportional to 9,357.70, 14,040.60 and 4,740.70 is: 7,113.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,357.70 : 14,040.60 = 4,740.70 : x
  2. Step 2: Convert to fraction form
    9,357.70/14,040.60 = 4,740.70/x
  3. Step 3: Cross multiply
    9,357.70x = 14,040.60 × 4,740.70
  4. Step 4: Simplify right side
    9,357.70x = 66,562,272.42
  5. Step 5: Solve for x
    x = 66,562,272.42/9,357.70
  6. Step 6: Final answer
    x = 7,113.10

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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.