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Finding the Fourth Proportional to 16,878.55, 25,302.03 and 7,011.55

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Solution

The fourth proportional to 16,878.55, 25,302.03 and 7,011.55 is: 10,510.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,878.55 : 25,302.03 = 7,011.55 : x
  2. Step 2: Convert to fraction form
    16,878.55/25,302.03 = 7,011.55/x
  3. Step 3: Cross multiply
    16,878.55x = 25,302.03 × 7,011.55
  4. Step 4: Simplify right side
    16,878.55x = 177,406,448.45
  5. Step 5: Solve for x
    x = 177,406,448.45/16,878.55
  6. Step 6: Final answer
    x = 10,510.76

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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.