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Finding the Fourth Proportional to 30,915.52, 46,372.68 and 7,542.16

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Solution

The fourth proportional to 30,915.52, 46,372.68 and 7,542.16 is: 11,313.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,915.52 : 46,372.68 = 7,542.16 : x
  2. Step 2: Convert to fraction form
    30,915.52/46,372.68 = 7,542.16/x
  3. Step 3: Cross multiply
    30,915.52x = 46,372.68 × 7,542.16
  4. Step 4: Simplify right side
    30,915.52x = 349,750,172.19
  5. Step 5: Solve for x
    x = 349,750,172.19/30,915.52
  6. Step 6: Final answer
    x = 11,313.09

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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.