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Finding the Fourth Proportional to 42,398.44, 63,597.93 and 14,689.96

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Solution

The fourth proportional to 42,398.44, 63,597.93 and 14,689.96 is: 22,035.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,398.44 : 63,597.93 = 14,689.96 : x
  2. Step 2: Convert to fraction form
    42,398.44/63,597.93 = 14,689.96/x
  3. Step 3: Cross multiply
    42,398.44x = 63,597.93 × 14,689.96
  4. Step 4: Simplify right side
    42,398.44x = 934,251,047.78
  5. Step 5: Solve for x
    x = 934,251,047.78/42,398.44
  6. Step 6: Final answer
    x = 22,035.03

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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.