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Finding the Fourth Proportional to 14,637, 21,955.68 and 5,403

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Solution

The fourth proportional to 14,637, 21,955.68 and 5,403 is: 8,104.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,637 : 21,955.68 = 5,403 : x
  2. Step 2: Convert to fraction form
    14,637/21,955.68 = 5,403/x
  3. Step 3: Cross multiply
    14,637x = 21,955.68 × 5,403
  4. Step 4: Simplify right side
    14,637x = 118,626,539.04
  5. Step 5: Solve for x
    x = 118,626,539.04/14,637
  6. Step 6: Final answer
    x = 8,104.57

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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.