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Finding the Fourth Proportional to 70,943.04, 97,893.90 and 39,110.04

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Solution

The fourth proportional to 70,943.04, 97,893.90 and 39,110.04 is: 53,967.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,943.04 : 97,893.90 = 39,110.04 : x
  2. Step 2: Convert to fraction form
    70,943.04/97,893.90 = 39,110.04/x
  3. Step 3: Cross multiply
    70,943.04x = 97,893.90 × 39,110.04
  4. Step 4: Simplify right side
    70,943.04x = 3,828,634,344.76
  5. Step 5: Solve for x
    x = 3,828,634,344.76/70,943.04
  6. Step 6: Final answer
    x = 53,967.72

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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.