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Finding the Fourth Proportional to 70,586.09, 97,409 and 38,757.05

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Solution

The fourth proportional to 70,586.09, 97,409 and 38,757.05 is: 53,484.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,586.09 : 97,409 = 38,757.05 : x
  2. Step 2: Convert to fraction form
    70,586.09/97,409 = 38,757.05/x
  3. Step 3: Cross multiply
    70,586.09x = 97,409 × 38,757.05
  4. Step 4: Simplify right side
    70,586.09x = 3,775,285,483.45
  5. Step 5: Solve for x
    x = 3,775,285,483.45/70,586.09
  6. Step 6: Final answer
    x = 53,484.84

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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.