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Finding the Fourth Proportional to 35,806.60, 49,413 and 21,655.36

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Solution

The fourth proportional to 35,806.60, 49,413 and 21,655.36 is: 29,884.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,806.60 : 49,413 = 21,655.36 : x
  2. Step 2: Convert to fraction form
    35,806.60/49,413 = 21,655.36/x
  3. Step 3: Cross multiply
    35,806.60x = 49,413 × 21,655.36
  4. Step 4: Simplify right side
    35,806.60x = 1,070,056,303.68
  5. Step 5: Solve for x
    x = 1,070,056,303.68/35,806.60
  6. Step 6: Final answer
    x = 29,884.33

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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.