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Finding the Fourth Proportional to 70,691.50, 97,481.94 and 46,809.46

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Solution

The fourth proportional to 70,691.50, 97,481.94 and 46,809.46 is: 64,549.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,691.50 : 97,481.94 = 46,809.46 : x
  2. Step 2: Convert to fraction form
    70,691.50/97,481.94 = 46,809.46/x
  3. Step 3: Cross multiply
    70,691.50x = 97,481.94 × 46,809.46
  4. Step 4: Simplify right side
    70,691.50x = 4,563,076,971.15
  5. Step 5: Solve for x
    x = 4,563,076,971.15/70,691.50
  6. Step 6: Final answer
    x = 64,549.16

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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.