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Finding the Fourth Proportional to 56,570.63, 84,866.86 and 21,507.55

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Solution

The fourth proportional to 56,570.63, 84,866.86 and 21,507.55 is: 32,265.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,570.63 : 84,866.86 = 21,507.55 : x
  2. Step 2: Convert to fraction form
    56,570.63/84,866.86 = 21,507.55/x
  3. Step 3: Cross multiply
    56,570.63x = 84,866.86 × 21,507.55
  4. Step 4: Simplify right side
    56,570.63x = 1,825,278,049.51
  5. Step 5: Solve for x
    x = 1,825,278,049.51/56,570.63
  6. Step 6: Final answer
    x = 32,265.47

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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.