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Finding the Fourth Proportional to 61,288.94, 84,578.24 and 34,430.88

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Solution

The fourth proportional to 61,288.94, 84,578.24 and 34,430.88 is: 47,514.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,288.94 : 84,578.24 = 34,430.88 : x
  2. Step 2: Convert to fraction form
    61,288.94/84,578.24 = 34,430.88/x
  3. Step 3: Cross multiply
    61,288.94x = 84,578.24 × 34,430.88
  4. Step 4: Simplify right side
    61,288.94x = 2,912,103,271.34
  5. Step 5: Solve for x
    x = 2,912,103,271.34/61,288.94
  6. Step 6: Final answer
    x = 47,514.34

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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.