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Finding the Fourth Proportional to 15,036.69, 20,764.65 and 10,571.11

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Solution

The fourth proportional to 15,036.69, 20,764.65 and 10,571.11 is: 14,597.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,036.69 : 20,764.65 = 10,571.11 : x
  2. Step 2: Convert to fraction form
    15,036.69/20,764.65 = 10,571.11/x
  3. Step 3: Cross multiply
    15,036.69x = 20,764.65 × 10,571.11
  4. Step 4: Simplify right side
    15,036.69x = 219,505,386.99
  5. Step 5: Solve for x
    x = 219,505,386.99/15,036.69
  6. Step 6: Final answer
    x = 14,597.99

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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.