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Finding the Fourth Proportional to 70,530.70, 97,334.40 and 40,320.94

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Solution

The fourth proportional to 70,530.70, 97,334.40 and 40,320.94 is: 55,644.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,530.70 : 97,334.40 = 40,320.94 : x
  2. Step 2: Convert to fraction form
    70,530.70/97,334.40 = 40,320.94/x
  3. Step 3: Cross multiply
    70,530.70x = 97,334.40 × 40,320.94
  4. Step 4: Simplify right side
    70,530.70x = 3,924,614,502.34
  5. Step 5: Solve for x
    x = 3,924,614,502.34/70,530.70
  6. Step 6: Final answer
    x = 55,644.06

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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.