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Finding the Fourth Proportional to 15,065.40, 22,598.10 and 12,149.40

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Solution

The fourth proportional to 15,065.40, 22,598.10 and 12,149.40 is: 18,224.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,065.40 : 22,598.10 = 12,149.40 : x
  2. Step 2: Convert to fraction form
    15,065.40/22,598.10 = 12,149.40/x
  3. Step 3: Cross multiply
    15,065.40x = 22,598.10 × 12,149.40
  4. Step 4: Simplify right side
    15,065.40x = 274,553,356.14
  5. Step 5: Solve for x
    x = 274,553,356.14/15,065.40
  6. Step 6: Final answer
    x = 18,224.10

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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.