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Finding the Fourth Proportional to 12,970.84, 17,899.79 and 7,592.30

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Solution

The fourth proportional to 12,970.84, 17,899.79 and 7,592.30 is: 10,477.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,970.84 : 17,899.79 = 7,592.30 : x
  2. Step 2: Convert to fraction form
    12,970.84/17,899.79 = 7,592.30/x
  3. Step 3: Cross multiply
    12,970.84x = 17,899.79 × 7,592.30
  4. Step 4: Simplify right side
    12,970.84x = 135,900,575.62
  5. Step 5: Solve for x
    x = 135,900,575.62/12,970.84
  6. Step 6: Final answer
    x = 10,477.39

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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.