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Finding the Fourth Proportional to 70,125.51, 96,775.56 and 39,503.88

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Solution

The fourth proportional to 70,125.51, 96,775.56 and 39,503.88 is: 54,516.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,125.51 : 96,775.56 = 39,503.88 : x
  2. Step 2: Convert to fraction form
    70,125.51/96,775.56 = 39,503.88/x
  3. Step 3: Cross multiply
    70,125.51x = 96,775.56 × 39,503.88
  4. Step 4: Simplify right side
    70,125.51x = 3,823,010,109.17
  5. Step 5: Solve for x
    x = 3,823,010,109.17/70,125.51
  6. Step 6: Final answer
    x = 54,516.68

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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.