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Finding the Fourth Proportional to 14,412.66, 21,580.05 and 7,472.58

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Solution

The fourth proportional to 14,412.66, 21,580.05 and 7,472.58 is: 11,188.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,412.66 : 21,580.05 = 7,472.58 : x
  2. Step 2: Convert to fraction form
    14,412.66/21,580.05 = 7,472.58/x
  3. Step 3: Cross multiply
    14,412.66x = 21,580.05 × 7,472.58
  4. Step 4: Simplify right side
    14,412.66x = 161,258,650.03
  5. Step 5: Solve for x
    x = 161,258,650.03/14,412.66
  6. Step 6: Final answer
    x = 11,188.68

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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.