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Finding the Fourth Proportional to 21,497.79, 32,258.99 and 8,348.46

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Solution

The fourth proportional to 21,497.79, 32,258.99 and 8,348.46 is: 12,527.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,497.79 : 32,258.99 = 8,348.46 : x
  2. Step 2: Convert to fraction form
    21,497.79/32,258.99 = 8,348.46/x
  3. Step 3: Cross multiply
    21,497.79x = 32,258.99 × 8,348.46
  4. Step 4: Simplify right side
    21,497.79x = 269,312,887.66
  5. Step 5: Solve for x
    x = 269,312,887.66/21,497.79
  6. Step 6: Final answer
    x = 12,527.47

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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.