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Finding the Fourth Proportional to 30,307.57, 45,440.39 and 15,506.44

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Solution

The fourth proportional to 30,307.57, 45,440.39 and 15,506.44 is: 23,248.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,307.57 : 45,440.39 = 15,506.44 : x
  2. Step 2: Convert to fraction form
    30,307.57/45,440.39 = 15,506.44/x
  3. Step 3: Cross multiply
    30,307.57x = 45,440.39 × 15,506.44
  4. Step 4: Simplify right side
    30,307.57x = 704,618,606.28
  5. Step 5: Solve for x
    x = 704,618,606.28/30,307.57
  6. Step 6: Final answer
    x = 23,248.93

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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.