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Finding the Fourth Proportional to 70,798.89, 97,702.74 and 38,968.92

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Solution

The fourth proportional to 70,798.89, 97,702.74 and 38,968.92 is: 53,777.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,798.89 : 97,702.74 = 38,968.92 : x
  2. Step 2: Convert to fraction form
    70,798.89/97,702.74 = 38,968.92/x
  3. Step 3: Cross multiply
    70,798.89x = 97,702.74 × 38,968.92
  4. Step 4: Simplify right side
    70,798.89x = 3,807,370,258.84
  5. Step 5: Solve for x
    x = 3,807,370,258.84/70,798.89
  6. Step 6: Final answer
    x = 53,777.26

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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.