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Finding the Fourth Proportional to 70,881.38, 97,818.81 and 39,052.70

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Solution

The fourth proportional to 70,881.38, 97,818.81 and 39,052.70 is: 53,894.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,881.38 : 97,818.81 = 39,052.70 : x
  2. Step 2: Convert to fraction form
    70,881.38/97,818.81 = 39,052.70/x
  3. Step 3: Cross multiply
    70,881.38x = 97,818.81 × 39,052.70
  4. Step 4: Simplify right side
    70,881.38x = 3,820,088,641.29
  5. Step 5: Solve for x
    x = 3,820,088,641.29/70,881.38
  6. Step 6: Final answer
    x = 53,894.11

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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.