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Finding the Fourth Proportional to 70,843.75, 97,762.89 and 39,012.91

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Solution

The fourth proportional to 70,843.75, 97,762.89 and 39,012.91 is: 53,837.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,843.75 : 97,762.89 = 39,012.91 : x
  2. Step 2: Convert to fraction form
    70,843.75/97,762.89 = 39,012.91/x
  3. Step 3: Cross multiply
    70,843.75x = 97,762.89 × 39,012.91
  4. Step 4: Simplify right side
    70,843.75x = 3,814,014,828.91
  5. Step 5: Solve for x
    x = 3,814,014,828.91/70,843.75
  6. Step 6: Final answer
    x = 53,837.00

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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.