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Finding the Fourth Proportional to 70,054.80, 96,675.36 and 38,223.42

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Solution

The fourth proportional to 70,054.80, 96,675.36 and 38,223.42 is: 52,748.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,054.80 : 96,675.36 = 38,223.42 : x
  2. Step 2: Convert to fraction form
    70,054.80/96,675.36 = 38,223.42/x
  3. Step 3: Cross multiply
    70,054.80x = 96,675.36 × 38,223.42
  4. Step 4: Simplify right side
    70,054.80x = 3,695,262,888.93
  5. Step 5: Solve for x
    x = 3,695,262,888.93/70,054.80
  6. Step 6: Final answer
    x = 52,748.18

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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.