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Finding the Fourth Proportional to 7,048.40, 10,588.80 and 4,861.40

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Solution

The fourth proportional to 7,048.40, 10,588.80 and 4,861.40 is: 7,303.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,048.40 : 10,588.80 = 4,861.40 : x
  2. Step 2: Convert to fraction form
    7,048.40/10,588.80 = 4,861.40/x
  3. Step 3: Cross multiply
    7,048.40x = 10,588.80 × 4,861.40
  4. Step 4: Simplify right side
    7,048.40x = 51,476,392.32
  5. Step 5: Solve for x
    x = 51,476,392.32/7,048.40
  6. Step 6: Final answer
    x = 7,303.27

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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.