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Finding the Fourth Proportional to 7,200.63, 9,941.54 and 4,407.75

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Solution

The fourth proportional to 7,200.63, 9,941.54 and 4,407.75 is: 6,085.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.63 : 9,941.54 = 4,407.75 : x
  2. Step 2: Convert to fraction form
    7,200.63/9,941.54 = 4,407.75/x
  3. Step 3: Cross multiply
    7,200.63x = 9,941.54 × 4,407.75
  4. Step 4: Simplify right side
    7,200.63x = 43,819,800.90
  5. Step 5: Solve for x
    x = 43,819,800.90/7,200.63
  6. Step 6: Final answer
    x = 6,085.55

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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.