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Finding the Fourth Proportional to 7,762.02, 10,713.93 and 5,279.46

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Solution

The fourth proportional to 7,762.02, 10,713.93 and 5,279.46 is: 7,287.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,762.02 : 10,713.93 = 5,279.46 : x
  2. Step 2: Convert to fraction form
    7,762.02/10,713.93 = 5,279.46/x
  3. Step 3: Cross multiply
    7,762.02x = 10,713.93 × 5,279.46
  4. Step 4: Simplify right side
    7,762.02x = 56,563,764.88
  5. Step 5: Solve for x
    x = 56,563,764.88/7,762.02
  6. Step 6: Final answer
    x = 7,287.25

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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.