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Finding the Fourth Proportional to 7,750.74, 10,695.55 and 4,347.57

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Solution

The fourth proportional to 7,750.74, 10,695.55 and 4,347.57 is: 5,999.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,750.74 : 10,695.55 = 4,347.57 : x
  2. Step 2: Convert to fraction form
    7,750.74/10,695.55 = 4,347.57/x
  3. Step 3: Cross multiply
    7,750.74x = 10,695.55 × 4,347.57
  4. Step 4: Simplify right side
    7,750.74x = 46,499,601.34
  5. Step 5: Solve for x
    x = 46,499,601.34/7,750.74
  6. Step 6: Final answer
    x = 5,999.37

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Half scale
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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.