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Finding the Fourth Proportional to 27,563.88, 38,038.17 and 14,988.63

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Solution

The fourth proportional to 27,563.88, 38,038.17 and 14,988.63 is: 20,684.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,563.88 : 38,038.17 = 14,988.63 : x
  2. Step 2: Convert to fraction form
    27,563.88/38,038.17 = 14,988.63/x
  3. Step 3: Cross multiply
    27,563.88x = 38,038.17 × 14,988.63
  4. Step 4: Simplify right side
    27,563.88x = 570,140,056.01
  5. Step 5: Solve for x
    x = 570,140,056.01/27,563.88
  6. Step 6: Final answer
    x = 20,684.32

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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.