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Finding the Fourth Proportional to 56,752.13, 84,728.45 and 43,354.49

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Solution

The fourth proportional to 56,752.13, 84,728.45 and 43,354.49 is: 64,726.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,752.13 : 84,728.45 = 43,354.49 : x
  2. Step 2: Convert to fraction form
    56,752.13/84,728.45 = 43,354.49/x
  3. Step 3: Cross multiply
    56,752.13x = 84,728.45 × 43,354.49
  4. Step 4: Simplify right side
    56,752.13x = 3,673,358,422.98
  5. Step 5: Solve for x
    x = 3,673,358,422.98/56,752.13
  6. Step 6: Final answer
    x = 64,726.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.