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Finding the Fourth Proportional to 57,007.84, 78,662.40 and 32,478.88

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Solution

The fourth proportional to 57,007.84, 78,662.40 and 32,478.88 is: 44,816.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,007.84 : 78,662.40 = 32,478.88 : x
  2. Step 2: Convert to fraction form
    57,007.84/78,662.40 = 32,478.88/x
  3. Step 3: Cross multiply
    57,007.84x = 78,662.40 × 32,478.88
  4. Step 4: Simplify right side
    57,007.84x = 2,554,866,650.11
  5. Step 5: Solve for x
    x = 2,554,866,650.11/57,007.84
  6. Step 6: Final answer
    x = 44,816.06

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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.