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Finding the Fourth Proportional to 14,060.39, 19,402.99 and 7,687.02

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Solution

The fourth proportional to 14,060.39, 19,402.99 and 7,687.02 is: 10,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,060.39 : 19,402.99 = 7,687.02 : x
  2. Step 2: Convert to fraction form
    14,060.39/19,402.99 = 7,687.02/x
  3. Step 3: Cross multiply
    14,060.39x = 19,402.99 × 7,687.02
  4. Step 4: Simplify right side
    14,060.39x = 149,151,159.83
  5. Step 5: Solve for x
    x = 149,151,159.83/14,060.39
  6. Step 6: Final answer
    x = 10,607.90

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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.