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Finding the Fourth Proportional to 15,750.54, 21,736.68 and 9,036.12

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Solution

The fourth proportional to 15,750.54, 21,736.68 and 9,036.12 is: 12,470.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,750.54 : 21,736.68 = 9,036.12 : x
  2. Step 2: Convert to fraction form
    15,750.54/21,736.68 = 9,036.12/x
  3. Step 3: Cross multiply
    15,750.54x = 21,736.68 × 9,036.12
  4. Step 4: Simplify right side
    15,750.54x = 196,415,248.88
  5. Step 5: Solve for x
    x = 196,415,248.88/15,750.54
  6. Step 6: Final answer
    x = 12,470.38

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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.