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Finding the Fourth Proportional to 70,581.84, 97,403.75 and 38,750.05

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Solution

The fourth proportional to 70,581.84, 97,403.75 and 38,750.05 is: 53,475.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,581.84 : 97,403.75 = 38,750.05 : x
  2. Step 2: Convert to fraction form
    70,581.84/97,403.75 = 38,750.05/x
  3. Step 3: Cross multiply
    70,581.84x = 97,403.75 × 38,750.05
  4. Step 4: Simplify right side
    70,581.84x = 3,774,400,182.69
  5. Step 5: Solve for x
    x = 3,774,400,182.69/70,581.84
  6. Step 6: Final answer
    x = 53,475.51

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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.