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Finding the Fourth Proportional to 70,851.63, 97,775.33 and 38,586.30

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Solution

The fourth proportional to 70,851.63, 97,775.33 and 38,586.30 is: 53,249.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,851.63 : 97,775.33 = 38,586.30 : x
  2. Step 2: Convert to fraction form
    70,851.63/97,775.33 = 38,586.30/x
  3. Step 3: Cross multiply
    70,851.63x = 97,775.33 × 38,586.30
  4. Step 4: Simplify right side
    70,851.63x = 3,772,788,215.98
  5. Step 5: Solve for x
    x = 3,772,788,215.98/70,851.63
  6. Step 6: Final answer
    x = 53,249.14

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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.