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Finding the Fourth Proportional to 48,509.64, 66,944.76 and 29,385.36

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Solution

The fourth proportional to 48,509.64, 66,944.76 and 29,385.36 is: 40,552.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,509.64 : 66,944.76 = 29,385.36 : x
  2. Step 2: Convert to fraction form
    48,509.64/66,944.76 = 29,385.36/x
  3. Step 3: Cross multiply
    48,509.64x = 66,944.76 × 29,385.36
  4. Step 4: Simplify right side
    48,509.64x = 1,967,195,872.71
  5. Step 5: Solve for x
    x = 1,967,195,872.71/48,509.64
  6. Step 6: Final answer
    x = 40,552.68

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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.