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Finding the Fourth Proportional to 12,363.21, 17,058.18 and 7,328.61

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Solution

The fourth proportional to 12,363.21, 17,058.18 and 7,328.61 is: 10,111.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,363.21 : 17,058.18 = 7,328.61 : x
  2. Step 2: Convert to fraction form
    12,363.21/17,058.18 = 7,328.61/x
  3. Step 3: Cross multiply
    12,363.21x = 17,058.18 × 7,328.61
  4. Step 4: Simplify right side
    12,363.21x = 125,012,748.53
  5. Step 5: Solve for x
    x = 125,012,748.53/12,363.21
  6. Step 6: Final answer
    x = 10,111.67

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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.