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Finding the Fourth Proportional to 42,397.76, 63,596.64 and 14,695.76

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Solution

The fourth proportional to 42,397.76, 63,596.64 and 14,695.76 is: 22,043.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,397.76 : 63,596.64 = 14,695.76 : x
  2. Step 2: Convert to fraction form
    42,397.76/63,596.64 = 14,695.76/x
  3. Step 3: Cross multiply
    42,397.76x = 63,596.64 × 14,695.76
  4. Step 4: Simplify right side
    42,397.76x = 934,600,958.25
  5. Step 5: Solve for x
    x = 934,600,958.25/42,397.76
  6. Step 6: Final answer
    x = 22,043.64

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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.