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Finding the Fourth Proportional to 70,210.72, 96,897.48 and 38,384.44

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Solution

The fourth proportional to 70,210.72, 96,897.48 and 38,384.44 is: 52,974.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,210.72 : 96,897.48 = 38,384.44 : x
  2. Step 2: Convert to fraction form
    70,210.72/96,897.48 = 38,384.44/x
  3. Step 3: Cross multiply
    70,210.72x = 96,897.48 × 38,384.44
  4. Step 4: Simplify right side
    70,210.72x = 3,719,355,507.21
  5. Step 5: Solve for x
    x = 3,719,355,507.21/70,210.72
  6. Step 6: Final answer
    x = 52,974.18

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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.