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Finding the Fourth Proportional to 13,457.48, 18,574.98 and 8,741.48

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Solution

The fourth proportional to 13,457.48, 18,574.98 and 8,741.48 is: 12,065.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.48 : 18,574.98 = 8,741.48 : x
  2. Step 2: Convert to fraction form
    13,457.48/18,574.98 = 8,741.48/x
  3. Step 3: Cross multiply
    13,457.48x = 18,574.98 × 8,741.48
  4. Step 4: Simplify right side
    13,457.48x = 162,372,816.17
  5. Step 5: Solve for x
    x = 162,372,816.17/13,457.48
  6. Step 6: Final answer
    x = 12,065.62

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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.