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Finding the Fourth Proportional to 70,684.05, 106,061.94 and 47,008.08

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Solution

The fourth proportional to 70,684.05, 106,061.94 and 47,008.08 is: 70,535.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,684.05 : 106,061.94 = 47,008.08 : x
  2. Step 2: Convert to fraction form
    70,684.05/106,061.94 = 47,008.08/x
  3. Step 3: Cross multiply
    70,684.05x = 106,061.94 × 47,008.08
  4. Step 4: Simplify right side
    70,684.05x = 4,985,768,160.48
  5. Step 5: Solve for x
    x = 4,985,768,160.48/70,684.05
  6. Step 6: Final answer
    x = 70,535.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.