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Finding the Fourth Proportional to 35,152.65, 48,511.95 and 20,042.88

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Solution

The fourth proportional to 35,152.65, 48,511.95 and 20,042.88 is: 27,659.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,152.65 : 48,511.95 = 20,042.88 : x
  2. Step 2: Convert to fraction form
    35,152.65/48,511.95 = 20,042.88/x
  3. Step 3: Cross multiply
    35,152.65x = 48,511.95 × 20,042.88
  4. Step 4: Simplify right side
    35,152.65x = 972,319,192.42
  5. Step 5: Solve for x
    x = 972,319,192.42/35,152.65
  6. Step 6: Final answer
    x = 27,659.91

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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.