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Finding the Fourth Proportional to 35,455.90, 48,929.40 and 19,540.88

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Solution

The fourth proportional to 35,455.90, 48,929.40 and 19,540.88 is: 26,966.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,455.90 : 48,929.40 = 19,540.88 : x
  2. Step 2: Convert to fraction form
    35,455.90/48,929.40 = 19,540.88/x
  3. Step 3: Cross multiply
    35,455.90x = 48,929.40 × 19,540.88
  4. Step 4: Simplify right side
    35,455.90x = 956,123,436.17
  5. Step 5: Solve for x
    x = 956,123,436.17/35,455.90
  6. Step 6: Final answer
    x = 26,966.56

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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.