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Finding the Fourth Proportional to 4,947.38, 7,421.10 and 1,484.66

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Solution

The fourth proportional to 4,947.38, 7,421.10 and 1,484.66 is: 2,227.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.38 : 7,421.10 = 1,484.66 : x
  2. Step 2: Convert to fraction form
    4,947.38/7,421.10 = 1,484.66/x
  3. Step 3: Cross multiply
    4,947.38x = 7,421.10 × 1,484.66
  4. Step 4: Simplify right side
    4,947.38x = 11,017,810.33
  5. Step 5: Solve for x
    x = 11,017,810.33/4,947.38
  6. Step 6: Final answer
    x = 2,227.00

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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.