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Finding the Fourth Proportional to 65,585.34, 90,507.78 and 37,292.76

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Solution

The fourth proportional to 65,585.34, 90,507.78 and 37,292.76 is: 51,464.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,585.34 : 90,507.78 = 37,292.76 : x
  2. Step 2: Convert to fraction form
    65,585.34/90,507.78 = 37,292.76/x
  3. Step 3: Cross multiply
    65,585.34x = 90,507.78 × 37,292.76
  4. Step 4: Simplify right side
    65,585.34x = 3,375,284,917.67
  5. Step 5: Solve for x
    x = 3,375,284,917.67/65,585.34
  6. Step 6: Final answer
    x = 51,464.01

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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.