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Finding the Fourth Proportional to 56,572, 84,858.28 and 19,132.32

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Solution

The fourth proportional to 56,572, 84,858.28 and 19,132.32 is: 28,698.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,572 : 84,858.28 = 19,132.32 : x
  2. Step 2: Convert to fraction form
    56,572/84,858.28 = 19,132.32/x
  3. Step 3: Cross multiply
    56,572x = 84,858.28 × 19,132.32
  4. Step 4: Simplify right side
    56,572x = 1,623,535,767.61
  5. Step 5: Solve for x
    x = 1,623,535,767.61/56,572
  6. Step 6: Final answer
    x = 28,698.57

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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.