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Finding the Fourth Proportional to 57,802.64, 86,703.12 and 18,359.12

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Solution

The fourth proportional to 57,802.64, 86,703.12 and 18,359.12 is: 27,538.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,802.64 : 86,703.12 = 18,359.12 : x
  2. Step 2: Convert to fraction form
    57,802.64/86,703.12 = 18,359.12/x
  3. Step 3: Cross multiply
    57,802.64x = 86,703.12 × 18,359.12
  4. Step 4: Simplify right side
    57,802.64x = 1,591,792,984.45
  5. Step 5: Solve for x
    x = 1,591,792,984.45/57,802.64
  6. Step 6: Final answer
    x = 27,538.41

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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.