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Finding the Fourth Proportional to 42,968.73, 64,437.65 and 14,881.22

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Solution

The fourth proportional to 42,968.73, 64,437.65 and 14,881.22 is: 22,316.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,968.73 : 64,437.65 = 14,881.22 : x
  2. Step 2: Convert to fraction form
    42,968.73/64,437.65 = 14,881.22/x
  3. Step 3: Cross multiply
    42,968.73x = 64,437.65 × 14,881.22
  4. Step 4: Simplify right side
    42,968.73x = 958,910,486.54
  5. Step 5: Solve for x
    x = 958,910,486.54/42,968.73
  6. Step 6: Final answer
    x = 22,316.48

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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.