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Finding the Fourth Proportional to 10,753.60, 16,108.80 and 7,254.40

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Solution

The fourth proportional to 10,753.60, 16,108.80 and 7,254.40 is: 10,867.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,753.60 : 16,108.80 = 7,254.40 : x
  2. Step 2: Convert to fraction form
    10,753.60/16,108.80 = 7,254.40/x
  3. Step 3: Cross multiply
    10,753.60x = 16,108.80 × 7,254.40
  4. Step 4: Simplify right side
    10,753.60x = 116,859,678.72
  5. Step 5: Solve for x
    x = 116,859,678.72/10,753.60
  6. Step 6: Final answer
    x = 10,867.03

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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.