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Finding the Fourth Proportional to 4,953.90, 7,430.85 and 4,443.60

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Solution

The fourth proportional to 4,953.90, 7,430.85 and 4,443.60 is: 6,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,953.90 : 7,430.85 = 4,443.60 : x
  2. Step 2: Convert to fraction form
    4,953.90/7,430.85 = 4,443.60/x
  3. Step 3: Cross multiply
    4,953.90x = 7,430.85 × 4,443.60
  4. Step 4: Simplify right side
    4,953.90x = 33,019,725.06
  5. Step 5: Solve for x
    x = 33,019,725.06/4,953.90
  6. Step 6: Final answer
    x = 6,665.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.