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Finding the Fourth Proportional to 53,985.94, 81,008.07 and 26,283.94

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Solution

The fourth proportional to 53,985.94, 81,008.07 and 26,283.94 is: 39,440.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,985.94 : 81,008.07 = 26,283.94 : x
  2. Step 2: Convert to fraction form
    53,985.94/81,008.07 = 26,283.94/x
  3. Step 3: Cross multiply
    53,985.94x = 81,008.07 × 26,283.94
  4. Step 4: Simplify right side
    53,985.94x = 2,129,210,950.31
  5. Step 5: Solve for x
    x = 2,129,210,950.31/53,985.94
  6. Step 6: Final answer
    x = 39,440.10

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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.