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Finding the Fourth Proportional to 63,075.51, 87,042.60 and 34,779.38

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Solution

The fourth proportional to 63,075.51, 87,042.60 and 34,779.38 is: 47,994.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,075.51 : 87,042.60 = 34,779.38 : x
  2. Step 2: Convert to fraction form
    63,075.51/87,042.60 = 34,779.38/x
  3. Step 3: Cross multiply
    63,075.51x = 87,042.60 × 34,779.38
  4. Step 4: Simplify right side
    63,075.51x = 3,027,287,226.38
  5. Step 5: Solve for x
    x = 3,027,287,226.38/63,075.51
  6. Step 6: Final answer
    x = 47,994.65

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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.