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Finding the Fourth Proportional to 65,364.98, 90,201.93 and 37,070.06

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Solution

The fourth proportional to 65,364.98, 90,201.93 and 37,070.06 is: 51,155.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,364.98 : 90,201.93 = 37,070.06 : x
  2. Step 2: Convert to fraction form
    65,364.98/90,201.93 = 37,070.06/x
  3. Step 3: Cross multiply
    65,364.98x = 90,201.93 × 37,070.06
  4. Step 4: Simplify right side
    65,364.98x = 3,343,790,997.37
  5. Step 5: Solve for x
    x = 3,343,790,997.37/65,364.98
  6. Step 6: Final answer
    x = 51,155.69

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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.