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Finding the Fourth Proportional to 19,552.60, 29,328.90 and 7,245.40

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Solution

The fourth proportional to 19,552.60, 29,328.90 and 7,245.40 is: 10,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,552.60 : 29,328.90 = 7,245.40 : x
  2. Step 2: Convert to fraction form
    19,552.60/29,328.90 = 7,245.40/x
  3. Step 3: Cross multiply
    19,552.60x = 29,328.90 × 7,245.40
  4. Step 4: Simplify right side
    19,552.60x = 212,499,612.06
  5. Step 5: Solve for x
    x = 212,499,612.06/19,552.60
  6. Step 6: Final answer
    x = 10,868.10

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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.