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Finding the Fourth Proportional to 15,653.11, 21,601.24 and 8,483.22

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Solution

The fourth proportional to 15,653.11, 21,601.24 and 8,483.22 is: 11,706.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,653.11 : 21,601.24 = 8,483.22 : x
  2. Step 2: Convert to fraction form
    15,653.11/21,601.24 = 8,483.22/x
  3. Step 3: Cross multiply
    15,653.11x = 21,601.24 × 8,483.22
  4. Step 4: Simplify right side
    15,653.11x = 183,248,071.19
  5. Step 5: Solve for x
    x = 183,248,071.19/15,653.11
  6. Step 6: Final answer
    x = 11,706.82

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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.