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Finding the Fourth Proportional to 70,068.80, 96,693.12 and 38,238.08

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Solution

The fourth proportional to 70,068.80, 96,693.12 and 38,238.08 is: 52,767.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,068.80 : 96,693.12 = 38,238.08 : x
  2. Step 2: Convert to fraction form
    70,068.80/96,693.12 = 38,238.08/x
  3. Step 3: Cross multiply
    70,068.80x = 96,693.12 × 38,238.08
  4. Step 4: Simplify right side
    70,068.80x = 3,697,359,258.01
  5. Step 5: Solve for x
    x = 3,697,359,258.01/70,068.80
  6. Step 6: Final answer
    x = 52,767.56

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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.