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Finding the Fourth Proportional to 70,903.71, 97,847.79 and 39,073.77

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Solution

The fourth proportional to 70,903.71, 97,847.79 and 39,073.77 is: 53,922.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,903.71 : 97,847.79 = 39,073.77 : x
  2. Step 2: Convert to fraction form
    70,903.71/97,847.79 = 39,073.77/x
  3. Step 3: Cross multiply
    70,903.71x = 97,847.79 × 39,073.77
  4. Step 4: Simplify right side
    70,903.71x = 3,823,282,041.47
  5. Step 5: Solve for x
    x = 3,823,282,041.47/70,903.71
  6. Step 6: Final answer
    x = 53,922.17

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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.