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Finding the Fourth Proportional to 44,721.99, 67,080.96 and 13,130.82

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Solution

The fourth proportional to 44,721.99, 67,080.96 and 13,130.82 is: 19,695.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,721.99 : 67,080.96 = 13,130.82 : x
  2. Step 2: Convert to fraction form
    44,721.99/67,080.96 = 13,130.82/x
  3. Step 3: Cross multiply
    44,721.99x = 67,080.96 × 13,130.82
  4. Step 4: Simplify right side
    44,721.99x = 880,828,011.19
  5. Step 5: Solve for x
    x = 880,828,011.19/44,721.99
  6. Step 6: Final answer
    x = 19,695.64

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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.