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Finding the Fourth Proportional to 15,600.70, 21,528.99 and 8,527.10

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Solution

The fourth proportional to 15,600.70, 21,528.99 and 8,527.10 is: 11,767.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,600.70 : 21,528.99 = 8,527.10 : x
  2. Step 2: Convert to fraction form
    15,600.70/21,528.99 = 8,527.10/x
  3. Step 3: Cross multiply
    15,600.70x = 21,528.99 × 8,527.10
  4. Step 4: Simplify right side
    15,600.70x = 183,579,850.63
  5. Step 5: Solve for x
    x = 183,579,850.63/15,600.70
  6. Step 6: Final answer
    x = 11,767.41

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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.