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Finding the Fourth Proportional to 65,417.40, 98,126.10 and 35,893.80

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Solution

The fourth proportional to 65,417.40, 98,126.10 and 35,893.80 is: 53,840.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,417.40 : 98,126.10 = 35,893.80 : x
  2. Step 2: Convert to fraction form
    65,417.40/98,126.10 = 35,893.80/x
  3. Step 3: Cross multiply
    65,417.40x = 98,126.10 × 35,893.80
  4. Step 4: Simplify right side
    65,417.40x = 3,522,118,608.18
  5. Step 5: Solve for x
    x = 3,522,118,608.18/65,417.40
  6. Step 6: Final answer
    x = 53,840.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.