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Finding the Fourth Proportional to 56,562.90, 77,982.51 and 47,010.97

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Solution

The fourth proportional to 56,562.90, 77,982.51 and 47,010.97 is: 64,813.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,562.90 : 77,982.51 = 47,010.97 : x
  2. Step 2: Convert to fraction form
    56,562.90/77,982.51 = 47,010.97/x
  3. Step 3: Cross multiply
    56,562.90x = 77,982.51 × 47,010.97
  4. Step 4: Simplify right side
    56,562.90x = 3,666,033,438.13
  5. Step 5: Solve for x
    x = 3,666,033,438.13/56,562.90
  6. Step 6: Final answer
    x = 64,813.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.