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Finding the Fourth Proportional to 56,696.76, 78,207.12 and 35,458.56

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Solution

The fourth proportional to 56,696.76, 78,207.12 and 35,458.56 is: 48,911.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,696.76 : 78,207.12 = 35,458.56 : x
  2. Step 2: Convert to fraction form
    56,696.76/78,207.12 = 35,458.56/x
  3. Step 3: Cross multiply
    56,696.76x = 78,207.12 × 35,458.56
  4. Step 4: Simplify right side
    56,696.76x = 2,773,111,856.95
  5. Step 5: Solve for x
    x = 2,773,111,856.95/56,696.76
  6. Step 6: Final answer
    x = 48,911.29

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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.