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Finding the Fourth Proportional to 7,798.63, 10,762.32 and 4,656.64

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Solution

The fourth proportional to 7,798.63, 10,762.32 and 4,656.64 is: 6,426.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,798.63 : 10,762.32 = 4,656.64 : x
  2. Step 2: Convert to fraction form
    7,798.63/10,762.32 = 4,656.64/x
  3. Step 3: Cross multiply
    7,798.63x = 10,762.32 × 4,656.64
  4. Step 4: Simplify right side
    7,798.63x = 50,116,249.80
  5. Step 5: Solve for x
    x = 50,116,249.80/7,798.63
  6. Step 6: Final answer
    x = 6,426.29

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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.