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Finding the Fourth Proportional to 70,885.02, 97,821.36 and 39,053.64

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Solution

The fourth proportional to 70,885.02, 97,821.36 and 39,053.64 is: 53,894.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,885.02 : 97,821.36 = 39,053.64 : x
  2. Step 2: Convert to fraction form
    70,885.02/97,821.36 = 39,053.64/x
  3. Step 3: Cross multiply
    70,885.02x = 97,821.36 × 39,053.64
  4. Step 4: Simplify right side
    70,885.02x = 3,820,280,177.75
  5. Step 5: Solve for x
    x = 3,820,280,177.75/70,885.02
  6. Step 6: Final answer
    x = 53,894.04

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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.