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Finding the Fourth Proportional to 35,419.92, 53,130.96 and 9,124.44

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Solution

The fourth proportional to 35,419.92, 53,130.96 and 9,124.44 is: 13,686.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,419.92 : 53,130.96 = 9,124.44 : x
  2. Step 2: Convert to fraction form
    35,419.92/53,130.96 = 9,124.44/x
  3. Step 3: Cross multiply
    35,419.92x = 53,130.96 × 9,124.44
  4. Step 4: Simplify right side
    35,419.92x = 484,790,256.66
  5. Step 5: Solve for x
    x = 484,790,256.66/35,419.92
  6. Step 6: Final answer
    x = 13,686.94

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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.