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Finding the Fourth Proportional to 7,260.80, 10,020.16 and 4,607.60

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Solution

The fourth proportional to 7,260.80, 10,020.16 and 4,607.60 is: 6,358.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,260.80 : 10,020.16 = 4,607.60 : x
  2. Step 2: Convert to fraction form
    7,260.80/10,020.16 = 4,607.60/x
  3. Step 3: Cross multiply
    7,260.80x = 10,020.16 × 4,607.60
  4. Step 4: Simplify right side
    7,260.80x = 46,168,889.22
  5. Step 5: Solve for x
    x = 46,168,889.22/7,260.80
  6. Step 6: Final answer
    x = 6,358.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.