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Finding the Fourth Proportional to 62,707.63, 86,530.81 and 37,209.60

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Solution

The fourth proportional to 62,707.63, 86,530.81 and 37,209.60 is: 51,345.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,707.63 : 86,530.81 = 37,209.60 : x
  2. Step 2: Convert to fraction form
    62,707.63/86,530.81 = 37,209.60/x
  3. Step 3: Cross multiply
    62,707.63x = 86,530.81 × 37,209.60
  4. Step 4: Simplify right side
    62,707.63x = 3,219,776,209.07
  5. Step 5: Solve for x
    x = 3,219,776,209.07/62,707.63
  6. Step 6: Final answer
    x = 51,345.85

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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.