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Finding the Fourth Proportional to 42,992.63, 64,524.48 and 21,948.22

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Solution

The fourth proportional to 42,992.63, 64,524.48 and 21,948.22 is: 32,940.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,992.63 : 64,524.48 = 21,948.22 : x
  2. Step 2: Convert to fraction form
    42,992.63/64,524.48 = 21,948.22/x
  3. Step 3: Cross multiply
    42,992.63x = 64,524.48 × 21,948.22
  4. Step 4: Simplify right side
    42,992.63x = 1,416,197,482.43
  5. Step 5: Solve for x
    x = 1,416,197,482.43/42,992.63
  6. Step 6: Final answer
    x = 32,940.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.