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Finding the Fourth Proportional to 12,699.84, 17,530.44 and 10,337.88

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Solution

The fourth proportional to 12,699.84, 17,530.44 and 10,337.88 is: 14,270.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.84 : 17,530.44 = 10,337.88 : x
  2. Step 2: Convert to fraction form
    12,699.84/17,530.44 = 10,337.88/x
  3. Step 3: Cross multiply
    12,699.84x = 17,530.44 × 10,337.88
  4. Step 4: Simplify right side
    12,699.84x = 181,227,585.07
  5. Step 5: Solve for x
    x = 181,227,585.07/12,699.84
  6. Step 6: Final answer
    x = 14,270.07

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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.