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Finding the Fourth Proportional to 30,322.70, 45,493.47 and 15,541.94

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Solution

The fourth proportional to 30,322.70, 45,493.47 and 15,541.94 is: 23,317.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,322.70 : 45,493.47 = 15,541.94 : x
  2. Step 2: Convert to fraction form
    30,322.70/45,493.47 = 15,541.94/x
  3. Step 3: Cross multiply
    30,322.70x = 45,493.47 × 15,541.94
  4. Step 4: Simplify right side
    30,322.70x = 707,056,781.13
  5. Step 5: Solve for x
    x = 707,056,781.13/30,322.70
  6. Step 6: Final answer
    x = 23,317.74

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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.