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Finding the Fourth Proportional to 46,663.68, 69,955.88 and 21,718.22

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Solution

The fourth proportional to 46,663.68, 69,955.88 and 21,718.22 is: 32,558.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,663.68 : 69,955.88 = 21,718.22 : x
  2. Step 2: Convert to fraction form
    46,663.68/69,955.88 = 21,718.22/x
  3. Step 3: Cross multiply
    46,663.68x = 69,955.88 × 21,718.22
  4. Step 4: Simplify right side
    46,663.68x = 1,519,316,733.76
  5. Step 5: Solve for x
    x = 1,519,316,733.76/46,663.68
  6. Step 6: Final answer
    x = 32,558.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.