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Finding the Fourth Proportional to 69,662.32, 96,184.08 and 42,840.88

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Solution

The fourth proportional to 69,662.32, 96,184.08 and 42,840.88 is: 59,151.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,662.32 : 96,184.08 = 42,840.88 : x
  2. Step 2: Convert to fraction form
    69,662.32/96,184.08 = 42,840.88/x
  3. Step 3: Cross multiply
    69,662.32x = 96,184.08 × 42,840.88
  4. Step 4: Simplify right side
    69,662.32x = 4,120,610,629.19
  5. Step 5: Solve for x
    x = 4,120,610,629.19/69,662.32
  6. Step 6: Final answer
    x = 59,151.21

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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.