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Finding the Fourth Proportional to 72,896.58, 100,597.48 and 42,275.60

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Solution

The fourth proportional to 72,896.58, 100,597.48 and 42,275.60 is: 58,340.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,896.58 : 100,597.48 = 42,275.60 : x
  2. Step 2: Convert to fraction form
    72,896.58/100,597.48 = 42,275.60/x
  3. Step 3: Cross multiply
    72,896.58x = 100,597.48 × 42,275.60
  4. Step 4: Simplify right side
    72,896.58x = 4,252,818,825.49
  5. Step 5: Solve for x
    x = 4,252,818,825.49/72,896.58
  6. Step 6: Final answer
    x = 58,340.44

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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.