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Finding the Fourth Proportional to 42,671.80, 64,007.70 and 24,009.40

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Solution

The fourth proportional to 42,671.80, 64,007.70 and 24,009.40 is: 36,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,671.80 : 64,007.70 = 24,009.40 : x
  2. Step 2: Convert to fraction form
    42,671.80/64,007.70 = 24,009.40/x
  3. Step 3: Cross multiply
    42,671.80x = 64,007.70 × 24,009.40
  4. Step 4: Simplify right side
    42,671.80x = 1,536,786,472.38
  5. Step 5: Solve for x
    x = 1,536,786,472.38/42,671.80
  6. Step 6: Final answer
    x = 36,014.10

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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.