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Finding the Fourth Proportional to 15,125.64, 22,688.49 and 5,891.64

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Solution

The fourth proportional to 15,125.64, 22,688.49 and 5,891.64 is: 8,837.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,125.64 : 22,688.49 = 5,891.64 : x
  2. Step 2: Convert to fraction form
    15,125.64/22,688.49 = 5,891.64/x
  3. Step 3: Cross multiply
    15,125.64x = 22,688.49 × 5,891.64
  4. Step 4: Simplify right side
    15,125.64x = 133,672,457.22
  5. Step 5: Solve for x
    x = 133,672,457.22/15,125.64
  6. Step 6: Final answer
    x = 8,837.47

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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.