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Finding the Fourth Proportional to 56,473.51, 84,713.15 and 21,416.07

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Solution

The fourth proportional to 56,473.51, 84,713.15 and 21,416.07 is: 32,125.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,473.51 : 84,713.15 = 21,416.07 : x
  2. Step 2: Convert to fraction form
    56,473.51/84,713.15 = 21,416.07/x
  3. Step 3: Cross multiply
    56,473.51x = 84,713.15 × 21,416.07
  4. Step 4: Simplify right side
    56,473.51x = 1,814,222,643.24
  5. Step 5: Solve for x
    x = 1,814,222,643.24/56,473.51
  6. Step 6: Final answer
    x = 32,125.20

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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.