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Finding the Fourth Proportional to 32,712.64, 45,158.64 and 19,279.36

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Solution

The fourth proportional to 32,712.64, 45,158.64 and 19,279.36 is: 26,614.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,712.64 : 45,158.64 = 19,279.36 : x
  2. Step 2: Convert to fraction form
    32,712.64/45,158.64 = 19,279.36/x
  3. Step 3: Cross multiply
    32,712.64x = 45,158.64 × 19,279.36
  4. Step 4: Simplify right side
    32,712.64x = 870,629,677.67
  5. Step 5: Solve for x
    x = 870,629,677.67/32,712.64
  6. Step 6: Final answer
    x = 26,614.47

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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.