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Finding the Fourth Proportional to 42,392.76, 63,589.16 and 14,690.76

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Solution

The fourth proportional to 42,392.76, 63,589.16 and 14,690.76 is: 22,036.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,392.76 : 63,589.16 = 14,690.76 : x
  2. Step 2: Convert to fraction form
    42,392.76/63,589.16 = 14,690.76/x
  3. Step 3: Cross multiply
    42,392.76x = 63,589.16 × 14,690.76
  4. Step 4: Simplify right side
    42,392.76x = 934,173,088.16
  5. Step 5: Solve for x
    x = 934,173,088.16/42,392.76
  6. Step 6: Final answer
    x = 22,036.15

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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.