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Finding the Fourth Proportional to 70,835.31, 97,752.48 and 39,004.20

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Solution

The fourth proportional to 70,835.31, 97,752.48 and 39,004.20 is: 53,825.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,835.31 : 97,752.48 = 39,004.20 : x
  2. Step 2: Convert to fraction form
    70,835.31/97,752.48 = 39,004.20/x
  3. Step 3: Cross multiply
    70,835.31x = 97,752.48 × 39,004.20
  4. Step 4: Simplify right side
    70,835.31x = 3,812,757,280.42
  5. Step 5: Solve for x
    x = 3,812,757,280.42/70,835.31
  6. Step 6: Final answer
    x = 53,825.66

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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.