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Finding the Fourth Proportional to 12,999.98, 17,935.17 and 8,526.20

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Solution

The fourth proportional to 12,999.98, 17,935.17 and 8,526.20 is: 11,763.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999.98 : 17,935.17 = 8,526.20 : x
  2. Step 2: Convert to fraction form
    12,999.98/17,935.17 = 8,526.20/x
  3. Step 3: Cross multiply
    12,999.98x = 17,935.17 × 8,526.20
  4. Step 4: Simplify right side
    12,999.98x = 152,918,756.78
  5. Step 5: Solve for x
    x = 152,918,756.78/12,999.98
  6. Step 6: Final answer
    x = 11,763.00

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1.5x scale

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.