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Finding the Fourth Proportional to 10,244.80, 15,334.80 and 7,328.80

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Solution

The fourth proportional to 10,244.80, 15,334.80 and 7,328.80 is: 10,970.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,244.80 : 15,334.80 = 7,328.80 : x
  2. Step 2: Convert to fraction form
    10,244.80/15,334.80 = 7,328.80/x
  3. Step 3: Cross multiply
    10,244.80x = 15,334.80 × 7,328.80
  4. Step 4: Simplify right side
    10,244.80x = 112,385,682.24
  5. Step 5: Solve for x
    x = 112,385,682.24/10,244.80
  6. Step 6: Final answer
    x = 10,970.02

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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.