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Finding the Fourth Proportional to 8,328.61, 11,502.93 and 5,671.41

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Solution

The fourth proportional to 8,328.61, 11,502.93 and 5,671.41 is: 7,832.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.61 : 11,502.93 = 5,671.41 : x
  2. Step 2: Convert to fraction form
    8,328.61/11,502.93 = 5,671.41/x
  3. Step 3: Cross multiply
    8,328.61x = 11,502.93 × 5,671.41
  4. Step 4: Simplify right side
    8,328.61x = 65,237,832.23
  5. Step 5: Solve for x
    x = 65,237,832.23/8,328.61
  6. Step 6: Final answer
    x = 7,832.98

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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.