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Finding the Fourth Proportional to 58,878, 81,255.24 and 33,386.76

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Solution

The fourth proportional to 58,878, 81,255.24 and 33,386.76 is: 46,075.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,878 : 81,255.24 = 33,386.76 : x
  2. Step 2: Convert to fraction form
    58,878/81,255.24 = 33,386.76/x
  3. Step 3: Cross multiply
    58,878x = 81,255.24 × 33,386.76
  4. Step 4: Simplify right side
    58,878x = 2,712,849,196.62
  5. Step 5: Solve for x
    x = 2,712,849,196.62/58,878
  6. Step 6: Final answer
    x = 46,075.77

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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.