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Finding the Fourth Proportional to 61,782.70, 92,590.62 and 45,064.30

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Solution

The fourth proportional to 61,782.70, 92,590.62 and 45,064.30 is: 67,535.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,782.70 : 92,590.62 = 45,064.30 : x
  2. Step 2: Convert to fraction form
    61,782.70/92,590.62 = 45,064.30/x
  3. Step 3: Cross multiply
    61,782.70x = 92,590.62 × 45,064.30
  4. Step 4: Simplify right side
    61,782.70x = 4,172,531,476.87
  5. Step 5: Solve for x
    x = 4,172,531,476.87/61,782.70
  6. Step 6: Final answer
    x = 67,535.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.