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Finding the Fourth Proportional to 62,886.80, 86,777.16 and 34,590.80

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Solution

The fourth proportional to 62,886.80, 86,777.16 and 34,590.80 is: 47,731.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,886.80 : 86,777.16 = 34,590.80 : x
  2. Step 2: Convert to fraction form
    62,886.80/86,777.16 = 34,590.80/x
  3. Step 3: Cross multiply
    62,886.80x = 86,777.16 × 34,590.80
  4. Step 4: Simplify right side
    62,886.80x = 3,001,691,386.13
  5. Step 5: Solve for x
    x = 3,001,691,386.13/62,886.80
  6. Step 6: Final answer
    x = 47,731.66

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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.