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Finding the Fourth Proportional to 63,750.55, 87,978.87 and 35,455.63

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Solution

The fourth proportional to 63,750.55, 87,978.87 and 35,455.63 is: 48,930.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,750.55 : 87,978.87 = 35,455.63 : x
  2. Step 2: Convert to fraction form
    63,750.55/87,978.87 = 35,455.63/x
  3. Step 3: Cross multiply
    63,750.55x = 87,978.87 × 35,455.63
  4. Step 4: Simplify right side
    63,750.55x = 3,119,346,262.54
  5. Step 5: Solve for x
    x = 3,119,346,262.54/63,750.55
  6. Step 6: Final answer
    x = 48,930.50

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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.