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Finding the Fourth Proportional to 70,783.80, 106,050.96 and 37,430.16

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Solution

The fourth proportional to 70,783.80, 106,050.96 and 37,430.16 is: 56,079.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,783.80 : 106,050.96 = 37,430.16 : x
  2. Step 2: Convert to fraction form
    70,783.80/106,050.96 = 37,430.16/x
  3. Step 3: Cross multiply
    70,783.80x = 106,050.96 × 37,430.16
  4. Step 4: Simplify right side
    70,783.80x = 3,969,504,400.95
  5. Step 5: Solve for x
    x = 3,969,504,400.95/70,783.80
  6. Step 6: Final answer
    x = 56,079.28

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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.