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Finding the Fourth Proportional to 61,188.60, 84,526.29 and 47,220.96

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Solution

The fourth proportional to 61,188.60, 84,526.29 and 47,220.96 is: 65,231.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,188.60 : 84,526.29 = 47,220.96 : x
  2. Step 2: Convert to fraction form
    61,188.60/84,526.29 = 47,220.96/x
  3. Step 3: Cross multiply
    61,188.60x = 84,526.29 × 47,220.96
  4. Step 4: Simplify right side
    61,188.60x = 3,991,412,559.04
  5. Step 5: Solve for x
    x = 3,991,412,559.04/61,188.60
  6. Step 6: Final answer
    x = 65,231.31

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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.