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Finding the Fourth Proportional to 4,710, 7,064.76 and 1,423.08

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Solution

The fourth proportional to 4,710, 7,064.76 and 1,423.08 is: 2,134.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,710 : 7,064.76 = 1,423.08 : x
  2. Step 2: Convert to fraction form
    4,710/7,064.76 = 1,423.08/x
  3. Step 3: Cross multiply
    4,710x = 7,064.76 × 1,423.08
  4. Step 4: Simplify right side
    4,710x = 10,053,718.66
  5. Step 5: Solve for x
    x = 10,053,718.66/4,710
  6. Step 6: Final answer
    x = 2,134.55

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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.