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Finding the Fourth Proportional to 48,407.49, 72,615.72 and 18,827.57

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Solution

The fourth proportional to 48,407.49, 72,615.72 and 18,827.57 is: 28,243.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,407.49 : 72,615.72 = 18,827.57 : x
  2. Step 2: Convert to fraction form
    48,407.49/72,615.72 = 18,827.57/x
  3. Step 3: Cross multiply
    48,407.49x = 72,615.72 × 18,827.57
  4. Step 4: Simplify right side
    48,407.49x = 1,367,177,457.26
  5. Step 5: Solve for x
    x = 1,367,177,457.26/48,407.49
  6. Step 6: Final answer
    x = 28,243.10

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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.