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Finding the Fourth Proportional to 4,948.05, 7,421.05 and 1,437.31

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Solution

The fourth proportional to 4,948.05, 7,421.05 and 1,437.31 is: 2,155.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,948.05 : 7,421.05 = 1,437.31 : x
  2. Step 2: Convert to fraction form
    4,948.05/7,421.05 = 1,437.31/x
  3. Step 3: Cross multiply
    4,948.05x = 7,421.05 × 1,437.31
  4. Step 4: Simplify right side
    4,948.05x = 10,666,305.08
  5. Step 5: Solve for x
    x = 10,666,305.08/4,948.05
  6. Step 6: Final answer
    x = 2,155.66

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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.