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Finding the Fourth Proportional to 56,653.63, 84,903.93 and 21,574.15

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Solution

The fourth proportional to 56,653.63, 84,903.93 and 21,574.15 is: 32,332.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,653.63 : 84,903.93 = 21,574.15 : x
  2. Step 2: Convert to fraction form
    56,653.63/84,903.93 = 21,574.15/x
  3. Step 3: Cross multiply
    56,653.63x = 84,903.93 × 21,574.15
  4. Step 4: Simplify right side
    56,653.63x = 1,831,729,909.15
  5. Step 5: Solve for x
    x = 1,831,729,909.15/56,653.63
  6. Step 6: Final answer
    x = 32,332.09

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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.