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Finding the Fourth Proportional to 11,503.75, 15,875.04 and 6,468.82

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Solution

The fourth proportional to 11,503.75, 15,875.04 and 6,468.82 is: 8,926.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,503.75 : 15,875.04 = 6,468.82 : x
  2. Step 2: Convert to fraction form
    11,503.75/15,875.04 = 6,468.82/x
  3. Step 3: Cross multiply
    11,503.75x = 15,875.04 × 6,468.82
  4. Step 4: Simplify right side
    11,503.75x = 102,692,776.25
  5. Step 5: Solve for x
    x = 102,692,776.25/11,503.75
  6. Step 6: Final answer
    x = 8,926.90

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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.