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Finding the Fourth Proportional to 70,656.80, 97,410.28 and 53,353.56

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Solution

The fourth proportional to 70,656.80, 97,410.28 and 53,353.56 is: 73,555.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,656.80 : 97,410.28 = 53,353.56 : x
  2. Step 2: Convert to fraction form
    70,656.80/97,410.28 = 53,353.56/x
  3. Step 3: Cross multiply
    70,656.80x = 97,410.28 × 53,353.56
  4. Step 4: Simplify right side
    70,656.80x = 5,197,185,218.60
  5. Step 5: Solve for x
    x = 5,197,185,218.60/70,656.80
  6. Step 6: Final answer
    x = 73,555.34

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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.