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Finding the Fourth Proportional to 8,254.50, 11,390.91 and 4,717.50

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Solution

The fourth proportional to 8,254.50, 11,390.91 and 4,717.50 is: 6,509.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,254.50 : 11,390.91 = 4,717.50 : x
  2. Step 2: Convert to fraction form
    8,254.50/11,390.91 = 4,717.50/x
  3. Step 3: Cross multiply
    8,254.50x = 11,390.91 × 4,717.50
  4. Step 4: Simplify right side
    8,254.50x = 53,736,617.93
  5. Step 5: Solve for x
    x = 53,736,617.93/8,254.50
  6. Step 6: Final answer
    x = 6,509.98

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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.