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Finding the Fourth Proportional to 3,437.44, 5,156.12 and 971.93

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Solution

The fourth proportional to 3,437.44, 5,156.12 and 971.93 is: 1,457.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,437.44 : 5,156.12 = 971.93 : x
  2. Step 2: Convert to fraction form
    3,437.44/5,156.12 = 971.93/x
  3. Step 3: Cross multiply
    3,437.44x = 5,156.12 × 971.93
  4. Step 4: Simplify right side
    3,437.44x = 5,011,403.03
  5. Step 5: Solve for x
    x = 5,011,403.03/3,437.44
  6. Step 6: Final answer
    x = 1,457.89

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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.