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Finding the Fourth Proportional to 61,090.19, 84,309.19 and 34,235.19

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Solution

The fourth proportional to 61,090.19, 84,309.19 and 34,235.19 is: 47,247.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,090.19 : 84,309.19 = 34,235.19 : x
  2. Step 2: Convert to fraction form
    61,090.19/84,309.19 = 34,235.19/x
  3. Step 3: Cross multiply
    61,090.19x = 84,309.19 × 34,235.19
  4. Step 4: Simplify right side
    61,090.19x = 2,886,341,052.81
  5. Step 5: Solve for x
    x = 2,886,341,052.81/61,090.19
  6. Step 6: Final answer
    x = 47,247.21

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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.