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Finding the Fourth Proportional to 4,886.61, 7,330.99 and 1,424.13

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Solution

The fourth proportional to 4,886.61, 7,330.99 and 1,424.13 is: 2,136.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,886.61 : 7,330.99 = 1,424.13 : x
  2. Step 2: Convert to fraction form
    4,886.61/7,330.99 = 1,424.13/x
  3. Step 3: Cross multiply
    4,886.61x = 7,330.99 × 1,424.13
  4. Step 4: Simplify right side
    4,886.61x = 10,440,282.79
  5. Step 5: Solve for x
    x = 10,440,282.79/4,886.61
  6. Step 6: Final answer
    x = 2,136.51

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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.