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Finding the Fourth Proportional to 26,166.50, 36,113.04 and 14,988.50

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Solution

The fourth proportional to 26,166.50, 36,113.04 and 14,988.50 is: 20,686.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,166.50 : 36,113.04 = 14,988.50 : x
  2. Step 2: Convert to fraction form
    26,166.50/36,113.04 = 14,988.50/x
  3. Step 3: Cross multiply
    26,166.50x = 36,113.04 × 14,988.50
  4. Step 4: Simplify right side
    26,166.50x = 541,280,300.04
  5. Step 5: Solve for x
    x = 541,280,300.04/26,166.50
  6. Step 6: Final answer
    x = 20,686.00

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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.