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Finding the Fourth Proportional to 12,369.08, 17,071.08 and 7,654.88

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Solution

The fourth proportional to 12,369.08, 17,071.08 and 7,654.88 is: 10,564.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369.08 : 17,071.08 = 7,654.88 : x
  2. Step 2: Convert to fraction form
    12,369.08/17,071.08 = 7,654.88/x
  3. Step 3: Cross multiply
    12,369.08x = 17,071.08 × 7,654.88
  4. Step 4: Simplify right side
    12,369.08x = 130,677,068.87
  5. Step 5: Solve for x
    x = 130,677,068.87/12,369.08
  6. Step 6: Final answer
    x = 10,564.82

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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.