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Finding the Fourth Proportional to 45,637.95, 62,978.12 and 25,490.82

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Solution

The fourth proportional to 45,637.95, 62,978.12 and 25,490.82 is: 35,176.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,637.95 : 62,978.12 = 25,490.82 : x
  2. Step 2: Convert to fraction form
    45,637.95/62,978.12 = 25,490.82/x
  3. Step 3: Cross multiply
    45,637.95x = 62,978.12 × 25,490.82
  4. Step 4: Simplify right side
    45,637.95x = 1,605,363,478.51
  5. Step 5: Solve for x
    x = 1,605,363,478.51/45,637.95
  6. Step 6: Final answer
    x = 35,176.07

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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.