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Finding the Fourth Proportional to 27,423.60, 41,139.72 and 9,897.72

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Solution

The fourth proportional to 27,423.60, 41,139.72 and 9,897.72 is: 14,848.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,423.60 : 41,139.72 = 9,897.72 : x
  2. Step 2: Convert to fraction form
    27,423.60/41,139.72 = 9,897.72/x
  3. Step 3: Cross multiply
    27,423.60x = 41,139.72 × 9,897.72
  4. Step 4: Simplify right side
    27,423.60x = 407,189,429.44
  5. Step 5: Solve for x
    x = 407,189,429.44/27,423.60
  6. Step 6: Final answer
    x = 14,848.14

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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.