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Finding the Fourth Proportional to 84,761.28, 116,971.02 and 47,035.53

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Solution

The fourth proportional to 84,761.28, 116,971.02 and 47,035.53 is: 64,909.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,761.28 : 116,971.02 = 47,035.53 : x
  2. Step 2: Convert to fraction form
    84,761.28/116,971.02 = 47,035.53/x
  3. Step 3: Cross multiply
    84,761.28x = 116,971.02 × 47,035.53
  4. Step 4: Simplify right side
    84,761.28x = 5,501,793,920.34
  5. Step 5: Solve for x
    x = 5,501,793,920.34/84,761.28
  6. Step 6: Final answer
    x = 64,909.28

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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.