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Finding the Fourth Proportional to 65,656.51, 90,606.40 and 37,362.20

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Solution

The fourth proportional to 65,656.51, 90,606.40 and 37,362.20 is: 51,560.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,656.51 : 90,606.40 = 37,362.20 : x
  2. Step 2: Convert to fraction form
    65,656.51/90,606.40 = 37,362.20/x
  3. Step 3: Cross multiply
    65,656.51x = 90,606.40 × 37,362.20
  4. Step 4: Simplify right side
    65,656.51x = 3,385,253,891.64
  5. Step 5: Solve for x
    x = 3,385,253,891.64/65,656.51
  6. Step 6: Final answer
    x = 51,560.07

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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.