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Finding the Fourth Proportional to 61,090.69, 84,309.88 and 34,235.69

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Solution

The fourth proportional to 61,090.69, 84,309.88 and 34,235.69 is: 47,247.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,090.69 : 84,309.88 = 34,235.69 : x
  2. Step 2: Convert to fraction form
    61,090.69/84,309.88 = 34,235.69/x
  3. Step 3: Cross multiply
    61,090.69x = 84,309.88 × 34,235.69
  4. Step 4: Simplify right side
    61,090.69x = 2,886,406,915.62
  5. Step 5: Solve for x
    x = 2,886,406,915.62/61,090.69
  6. Step 6: Final answer
    x = 47,247.91

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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.