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Finding the Fourth Proportional to 35,695.60, 49,259.88 and 19,781.08

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Solution

The fourth proportional to 35,695.60, 49,259.88 and 19,781.08 is: 27,297.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,695.60 : 49,259.88 = 19,781.08 : x
  2. Step 2: Convert to fraction form
    35,695.60/49,259.88 = 19,781.08/x
  3. Step 3: Cross multiply
    35,695.60x = 49,259.88 × 19,781.08
  4. Step 4: Simplify right side
    35,695.60x = 974,413,627.07
  5. Step 5: Solve for x
    x = 974,413,627.07/35,695.60
  6. Step 6: Final answer
    x = 27,297.86

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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.