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Finding the Fourth Proportional to 51,663.30, 77,420.94 and 29,430.77

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Solution

The fourth proportional to 51,663.30, 77,420.94 and 29,430.77 is: 44,103.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,663.30 : 77,420.94 = 29,430.77 : x
  2. Step 2: Convert to fraction form
    51,663.30/77,420.94 = 29,430.77/x
  3. Step 3: Cross multiply
    51,663.30x = 77,420.94 × 29,430.77
  4. Step 4: Simplify right side
    51,663.30x = 2,278,557,878.32
  5. Step 5: Solve for x
    x = 2,278,557,878.32/51,663.30
  6. Step 6: Final answer
    x = 44,103.99

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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.