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Finding the Fourth Proportional to 35,671.38, 53,477.88 and 13,472.16

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Solution

The fourth proportional to 35,671.38, 53,477.88 and 13,472.16 is: 20,197.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,671.38 : 53,477.88 = 13,472.16 : x
  2. Step 2: Convert to fraction form
    35,671.38/53,477.88 = 13,472.16/x
  3. Step 3: Cross multiply
    35,671.38x = 53,477.88 × 13,472.16
  4. Step 4: Simplify right side
    35,671.38x = 720,462,555.82
  5. Step 5: Solve for x
    x = 720,462,555.82/35,671.38
  6. Step 6: Final answer
    x = 20,197.22

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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.