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Finding the Fourth Proportional to 7,592.77, 11,385.21 and 3,430.79

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Solution

The fourth proportional to 7,592.77, 11,385.21 and 3,430.79 is: 5,144.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,592.77 : 11,385.21 = 3,430.79 : x
  2. Step 2: Convert to fraction form
    7,592.77/11,385.21 = 3,430.79/x
  3. Step 3: Cross multiply
    7,592.77x = 11,385.21 × 3,430.79
  4. Step 4: Simplify right side
    7,592.77x = 39,060,243.95
  5. Step 5: Solve for x
    x = 39,060,243.95/7,592.77
  6. Step 6: Final answer
    x = 5,144.40

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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.