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Finding the Fourth Proportional to 12,962.81, 17,851.01 and 11,260.54

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Solution

The fourth proportional to 12,962.81, 17,851.01 and 11,260.54 is: 15,506.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,962.81 : 17,851.01 = 11,260.54 : x
  2. Step 2: Convert to fraction form
    12,962.81/17,851.01 = 11,260.54/x
  3. Step 3: Cross multiply
    12,962.81x = 17,851.01 × 11,260.54
  4. Step 4: Simplify right side
    12,962.81x = 201,011,909.41
  5. Step 5: Solve for x
    x = 201,011,909.41/12,962.81
  6. Step 6: Final answer
    x = 15,506.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.