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Finding the Fourth Proportional to 57,457.80, 86,186.88 and 18,011.52

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Solution

The fourth proportional to 57,457.80, 86,186.88 and 18,011.52 is: 27,017.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,457.80 : 86,186.88 = 18,011.52 : x
  2. Step 2: Convert to fraction form
    57,457.80/86,186.88 = 18,011.52/x
  3. Step 3: Cross multiply
    57,457.80x = 86,186.88 × 18,011.52
  4. Step 4: Simplify right side
    57,457.80x = 1,552,356,712.86
  5. Step 5: Solve for x
    x = 1,552,356,712.86/57,457.80
  6. Step 6: Final answer
    x = 27,017.34

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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.