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Finding the Fourth Proportional to 47,124.70, 70,710.96 and 31,340.72

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Solution

The fourth proportional to 47,124.70, 70,710.96 and 31,340.72 is: 47,026.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,124.70 : 70,710.96 = 31,340.72 : x
  2. Step 2: Convert to fraction form
    47,124.70/70,710.96 = 31,340.72/x
  3. Step 3: Cross multiply
    47,124.70x = 70,710.96 × 31,340.72
  4. Step 4: Simplify right side
    47,124.70x = 2,216,132,398.29
  5. Step 5: Solve for x
    x = 2,216,132,398.29/47,124.70
  6. Step 6: Final answer
    x = 47,026.98

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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.