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Finding the Fourth Proportional to 17,124.10, 25,686.15 and 4,812.10

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Solution

The fourth proportional to 17,124.10, 25,686.15 and 4,812.10 is: 7,218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,124.10 : 25,686.15 = 4,812.10 : x
  2. Step 2: Convert to fraction form
    17,124.10/25,686.15 = 4,812.10/x
  3. Step 3: Cross multiply
    17,124.10x = 25,686.15 × 4,812.10
  4. Step 4: Simplify right side
    17,124.10x = 123,604,322.42
  5. Step 5: Solve for x
    x = 123,604,322.42/17,124.10
  6. Step 6: Final answer
    x = 7,218.15

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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.