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Finding the Fourth Proportional to 12,360.50, 17,058.21 and 7,056.98

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Solution

The fourth proportional to 12,360.50, 17,058.21 and 7,056.98 is: 9,739.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,360.50 : 17,058.21 = 7,056.98 : x
  2. Step 2: Convert to fraction form
    12,360.50/17,058.21 = 7,056.98/x
  3. Step 3: Cross multiply
    12,360.50x = 17,058.21 × 7,056.98
  4. Step 4: Simplify right side
    12,360.50x = 120,379,446.81
  5. Step 5: Solve for x
    x = 120,379,446.81/12,360.50
  6. Step 6: Final answer
    x = 9,739.04

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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.