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Finding the Fourth Proportional to 14,117.90, 19,482.41 and 8,738.91

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Solution

The fourth proportional to 14,117.90, 19,482.41 and 8,738.91 is: 12,059.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,117.90 : 19,482.41 = 8,738.91 : x
  2. Step 2: Convert to fraction form
    14,117.90/19,482.41 = 8,738.91/x
  3. Step 3: Cross multiply
    14,117.90x = 19,482.41 × 8,738.91
  4. Step 4: Simplify right side
    14,117.90x = 170,254,983.88
  5. Step 5: Solve for x
    x = 170,254,983.88/14,117.90
  6. Step 6: Final answer
    x = 12,059.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.