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Finding the Fourth Proportional to 67,653.92, 101,574.74 and 42,620.06

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Solution

The fourth proportional to 67,653.92, 101,574.74 and 42,620.06 is: 63,989.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,653.92 : 101,574.74 = 42,620.06 : x
  2. Step 2: Convert to fraction form
    67,653.92/101,574.74 = 42,620.06/x
  3. Step 3: Cross multiply
    67,653.92x = 101,574.74 × 42,620.06
  4. Step 4: Simplify right side
    67,653.92x = 4,329,121,873.77
  5. Step 5: Solve for x
    x = 4,329,121,873.77/67,653.92
  6. Step 6: Final answer
    x = 63,989.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.