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Finding the Fourth Proportional to 12,635.52, 17,437.10 and 6,970.48

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Solution

The fourth proportional to 12,635.52, 17,437.10 and 6,970.48 is: 9,619.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635.52 : 17,437.10 = 6,970.48 : x
  2. Step 2: Convert to fraction form
    12,635.52/17,437.10 = 6,970.48/x
  3. Step 3: Cross multiply
    12,635.52x = 17,437.10 × 6,970.48
  4. Step 4: Simplify right side
    12,635.52x = 121,544,956.81
  5. Step 5: Solve for x
    x = 121,544,956.81/12,635.52
  6. Step 6: Final answer
    x = 9,619.31

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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.