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Finding the Fourth Proportional to 17,777.76, 26,669.04 and 6,531.60

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Solution

The fourth proportional to 17,777.76, 26,669.04 and 6,531.60 is: 9,798.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,777.76 : 26,669.04 = 6,531.60 : x
  2. Step 2: Convert to fraction form
    17,777.76/26,669.04 = 6,531.60/x
  3. Step 3: Cross multiply
    17,777.76x = 26,669.04 × 6,531.60
  4. Step 4: Simplify right side
    17,777.76x = 174,191,501.66
  5. Step 5: Solve for x
    x = 174,191,501.66/17,777.76
  6. Step 6: Final answer
    x = 9,798.28

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1.5x scale

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.