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Finding the Fourth Proportional to 42,671.80, 63,931.74 and 26,023.24

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Solution

The fourth proportional to 42,671.80, 63,931.74 and 26,023.24 is: 38,988.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,671.80 : 63,931.74 = 26,023.24 : x
  2. Step 2: Convert to fraction form
    42,671.80/63,931.74 = 26,023.24/x
  3. Step 3: Cross multiply
    42,671.80x = 63,931.74 × 26,023.24
  4. Step 4: Simplify right side
    42,671.80x = 1,663,711,013.64
  5. Step 5: Solve for x
    x = 1,663,711,013.64/42,671.80
  6. Step 6: Final answer
    x = 38,988.54

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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.