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Finding the Fourth Proportional to 70,900.03, 97,844.13 and 39,070.98

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Solution

The fourth proportional to 70,900.03, 97,844.13 and 39,070.98 is: 53,919.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,900.03 : 97,844.13 = 39,070.98 : x
  2. Step 2: Convert to fraction form
    70,900.03/97,844.13 = 39,070.98/x
  3. Step 3: Cross multiply
    70,900.03x = 97,844.13 × 39,070.98
  4. Step 4: Simplify right side
    70,900.03x = 3,822,866,046.35
  5. Step 5: Solve for x
    x = 3,822,866,046.35/70,900.03
  6. Step 6: Final answer
    x = 53,919.10

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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.