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Finding the Fourth Proportional to 65,707.35, 90,676.14 and 35,899.35

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Solution

The fourth proportional to 65,707.35, 90,676.14 and 35,899.35 is: 49,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,707.35 : 90,676.14 = 35,899.35 : x
  2. Step 2: Convert to fraction form
    65,707.35/90,676.14 = 35,899.35/x
  3. Step 3: Cross multiply
    65,707.35x = 90,676.14 × 35,899.35
  4. Step 4: Simplify right side
    65,707.35x = 3,255,214,486.51
  5. Step 5: Solve for x
    x = 3,255,214,486.51/65,707.35
  6. Step 6: Final answer
    x = 49,541.10

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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.