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Finding the Fourth Proportional to 35,458.63, 48,930.71 and 19,543.21

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Solution

The fourth proportional to 35,458.63, 48,930.71 and 19,543.21 is: 26,968.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,458.63 : 48,930.71 = 19,543.21 : x
  2. Step 2: Convert to fraction form
    35,458.63/48,930.71 = 19,543.21/x
  3. Step 3: Cross multiply
    35,458.63x = 48,930.71 × 19,543.21
  4. Step 4: Simplify right side
    35,458.63x = 956,262,920.94
  5. Step 5: Solve for x
    x = 956,262,920.94/35,458.63
  6. Step 6: Final answer
    x = 26,968.41

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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.