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Finding the Fourth Proportional to 38,669.20, 58,009.20 and 16,482.40

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Solution

The fourth proportional to 38,669.20, 58,009.20 and 16,482.40 is: 24,725.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,669.20 : 58,009.20 = 16,482.40 : x
  2. Step 2: Convert to fraction form
    38,669.20/58,009.20 = 16,482.40/x
  3. Step 3: Cross multiply
    38,669.20x = 58,009.20 × 16,482.40
  4. Step 4: Simplify right side
    38,669.20x = 956,130,838.08
  5. Step 5: Solve for x
    x = 956,130,838.08/38,669.20
  6. Step 6: Final answer
    x = 24,725.90

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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.