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Finding the Fourth Proportional to 38,970.80, 58,482.08 and 14,346.80

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Solution

The fourth proportional to 38,970.80, 58,482.08 and 14,346.80 is: 21,529.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,970.80 : 58,482.08 = 14,346.80 : x
  2. Step 2: Convert to fraction form
    38,970.80/58,482.08 = 14,346.80/x
  3. Step 3: Cross multiply
    38,970.80x = 58,482.08 × 14,346.80
  4. Step 4: Simplify right side
    38,970.80x = 839,030,705.34
  5. Step 5: Solve for x
    x = 839,030,705.34/38,970.80
  6. Step 6: Final answer
    x = 21,529.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.