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Finding the Fourth Proportional to 70,661.96, 97,515.96 and 38,833.76

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Solution

The fourth proportional to 70,661.96, 97,515.96 and 38,833.76 is: 53,591.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,661.96 : 97,515.96 = 38,833.76 : x
  2. Step 2: Convert to fraction form
    70,661.96/97,515.96 = 38,833.76/x
  3. Step 3: Cross multiply
    70,661.96x = 97,515.96 × 38,833.76
  4. Step 4: Simplify right side
    70,661.96x = 3,786,911,386.81
  5. Step 5: Solve for x
    x = 3,786,911,386.81/70,661.96
  6. Step 6: Final answer
    x = 53,591.94

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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.