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Finding the Fourth Proportional to 70,004.50, 96,602.70 and 39,785.83

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Solution

The fourth proportional to 70,004.50, 96,602.70 and 39,785.83 is: 54,902.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,004.50 : 96,602.70 = 39,785.83 : x
  2. Step 2: Convert to fraction form
    70,004.50/96,602.70 = 39,785.83/x
  3. Step 3: Cross multiply
    70,004.50x = 96,602.70 × 39,785.83
  4. Step 4: Simplify right side
    70,004.50x = 3,843,418,599.74
  5. Step 5: Solve for x
    x = 3,843,418,599.74/70,004.50
  6. Step 6: Final answer
    x = 54,902.45

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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.