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Finding the Fourth Proportional to 70,336.90, 97,064.93 and 38,505.80

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Solution

The fourth proportional to 70,336.90, 97,064.93 and 38,505.80 is: 53,138.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,336.90 : 97,064.93 = 38,505.80 : x
  2. Step 2: Convert to fraction form
    70,336.90/97,064.93 = 38,505.80/x
  3. Step 3: Cross multiply
    70,336.90x = 97,064.93 × 38,505.80
  4. Step 4: Simplify right side
    70,336.90x = 3,737,562,103.74
  5. Step 5: Solve for x
    x = 3,737,562,103.74/70,336.90
  6. Step 6: Final answer
    x = 53,138.00

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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.