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Finding the Fourth Proportional to 56,866.51, 85,314.88 and 19,426.52

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Solution

The fourth proportional to 56,866.51, 85,314.88 and 19,426.52 is: 29,144.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,866.51 : 85,314.88 = 19,426.52 : x
  2. Step 2: Convert to fraction form
    56,866.51/85,314.88 = 19,426.52/x
  3. Step 3: Cross multiply
    56,866.51x = 85,314.88 × 19,426.52
  4. Step 4: Simplify right side
    56,866.51x = 1,657,370,980.29
  5. Step 5: Solve for x
    x = 1,657,370,980.29/56,866.51
  6. Step 6: Final answer
    x = 29,144.94

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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.