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Finding the Fourth Proportional to 15,164.71, 20,927.01 and 8,450.19

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Solution

The fourth proportional to 15,164.71, 20,927.01 and 8,450.19 is: 11,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,164.71 : 20,927.01 = 8,450.19 : x
  2. Step 2: Convert to fraction form
    15,164.71/20,927.01 = 8,450.19/x
  3. Step 3: Cross multiply
    15,164.71x = 20,927.01 × 8,450.19
  4. Step 4: Simplify right side
    15,164.71x = 176,837,242.32
  5. Step 5: Solve for x
    x = 176,837,242.32/15,164.71
  6. Step 6: Final answer
    x = 11,661.10

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Double scale
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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.