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Finding the Fourth Proportional to 47,980.51, 71,970.77 and 14,700.45

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Solution

The fourth proportional to 47,980.51, 71,970.77 and 14,700.45 is: 22,050.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,980.51 : 71,970.77 = 14,700.45 : x
  2. Step 2: Convert to fraction form
    47,980.51/71,970.77 = 14,700.45/x
  3. Step 3: Cross multiply
    47,980.51x = 71,970.77 × 14,700.45
  4. Step 4: Simplify right side
    47,980.51x = 1,058,002,705.85
  5. Step 5: Solve for x
    x = 1,058,002,705.85/47,980.51
  6. Step 6: Final answer
    x = 22,050.68

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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.