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Finding the Fourth Proportional to 31,505.35, 43,477.35 and 17,358.19

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Solution

The fourth proportional to 31,505.35, 43,477.35 and 17,358.19 is: 23,954.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,505.35 : 43,477.35 = 17,358.19 : x
  2. Step 2: Convert to fraction form
    31,505.35/43,477.35 = 17,358.19/x
  3. Step 3: Cross multiply
    31,505.35x = 43,477.35 × 17,358.19
  4. Step 4: Simplify right side
    31,505.35x = 754,688,102.00
  5. Step 5: Solve for x
    x = 754,688,102.00/31,505.35
  6. Step 6: Final answer
    x = 23,954.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.