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Finding the Fourth Proportional to 42,908.88, 64,363.36 and 24,402

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Solution

The fourth proportional to 42,908.88, 64,363.36 and 24,402 is: 36,603.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,908.88 : 64,363.36 = 24,402 : x
  2. Step 2: Convert to fraction form
    42,908.88/64,363.36 = 24,402/x
  3. Step 3: Cross multiply
    42,908.88x = 64,363.36 × 24,402
  4. Step 4: Simplify right side
    42,908.88x = 1,570,594,710.72
  5. Step 5: Solve for x
    x = 1,570,594,710.72/42,908.88
  6. Step 6: Final answer
    x = 36,603.02

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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.