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Finding the Fourth Proportional to 27,319.50, 40,985.73 and 8,851.50

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Solution

The fourth proportional to 27,319.50, 40,985.73 and 8,851.50 is: 13,279.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,319.50 : 40,985.73 = 8,851.50 : x
  2. Step 2: Convert to fraction form
    27,319.50/40,985.73 = 8,851.50/x
  3. Step 3: Cross multiply
    27,319.50x = 40,985.73 × 8,851.50
  4. Step 4: Simplify right side
    27,319.50x = 362,785,189.10
  5. Step 5: Solve for x
    x = 362,785,189.10/27,319.50
  6. Step 6: Final answer
    x = 13,279.35

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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.