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Finding the Fourth Proportional to 64,884.20, 97,326.30 and 60,947.60

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Solution

The fourth proportional to 64,884.20, 97,326.30 and 60,947.60 is: 91,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,884.20 : 97,326.30 = 60,947.60 : x
  2. Step 2: Convert to fraction form
    64,884.20/97,326.30 = 60,947.60/x
  3. Step 3: Cross multiply
    64,884.20x = 97,326.30 × 60,947.60
  4. Step 4: Simplify right side
    64,884.20x = 5,931,804,401.88
  5. Step 5: Solve for x
    x = 5,931,804,401.88/64,884.20
  6. Step 6: Final answer
    x = 91,421.40

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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.