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Finding the Fourth Proportional to 65,314.62, 90,134.64 and 37,020.24

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Solution

The fourth proportional to 65,314.62, 90,134.64 and 37,020.24 is: 51,088.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,314.62 : 90,134.64 = 37,020.24 : x
  2. Step 2: Convert to fraction form
    65,314.62/90,134.64 = 37,020.24/x
  3. Step 3: Cross multiply
    65,314.62x = 90,134.64 × 37,020.24
  4. Step 4: Simplify right side
    65,314.62x = 3,336,806,005.11
  5. Step 5: Solve for x
    x = 3,336,806,005.11/65,314.62
  6. Step 6: Final answer
    x = 51,088.19

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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.