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Finding the Fourth Proportional to 70,616.70, 97,455.82 and 38,785.92

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Solution

The fourth proportional to 70,616.70, 97,455.82 and 38,785.92 is: 53,527.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,616.70 : 97,455.82 = 38,785.92 : x
  2. Step 2: Convert to fraction form
    70,616.70/97,455.82 = 38,785.92/x
  3. Step 3: Cross multiply
    70,616.70x = 97,455.82 × 38,785.92
  4. Step 4: Simplify right side
    70,616.70x = 3,779,913,638.05
  5. Step 5: Solve for x
    x = 3,779,913,638.05/70,616.70
  6. Step 6: Final answer
    x = 53,527.19

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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.