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Finding the Fourth Proportional to 7,703.90, 10,631.36 and 4,346.70

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Solution

The fourth proportional to 7,703.90, 10,631.36 and 4,346.70 is: 5,998.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,703.90 : 10,631.36 = 4,346.70 : x
  2. Step 2: Convert to fraction form
    7,703.90/10,631.36 = 4,346.70/x
  3. Step 3: Cross multiply
    7,703.90x = 10,631.36 × 4,346.70
  4. Step 4: Simplify right side
    7,703.90x = 46,211,332.51
  5. Step 5: Solve for x
    x = 46,211,332.51/7,703.90
  6. Step 6: Final answer
    x = 5,998.43

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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.