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Finding the Fourth Proportional to 15,796.92, 21,802.20 and 9,750.69

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Solution

The fourth proportional to 15,796.92, 21,802.20 and 9,750.69 is: 13,457.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,796.92 : 21,802.20 = 9,750.69 : x
  2. Step 2: Convert to fraction form
    15,796.92/21,802.20 = 9,750.69/x
  3. Step 3: Cross multiply
    15,796.92x = 21,802.20 × 9,750.69
  4. Step 4: Simplify right side
    15,796.92x = 212,586,493.52
  5. Step 5: Solve for x
    x = 212,586,493.52/15,796.92
  6. Step 6: Final answer
    x = 13,457.46

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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.