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Finding the Fourth Proportional to 14,899.70, 22,341.90 and 7,883.50

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Solution

The fourth proportional to 14,899.70, 22,341.90 and 7,883.50 is: 11,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,899.70 : 22,341.90 = 7,883.50 : x
  2. Step 2: Convert to fraction form
    14,899.70/22,341.90 = 7,883.50/x
  3. Step 3: Cross multiply
    14,899.70x = 22,341.90 × 7,883.50
  4. Step 4: Simplify right side
    14,899.70x = 176,132,368.65
  5. Step 5: Solve for x
    x = 176,132,368.65/14,899.70
  6. Step 6: Final answer
    x = 11,821.20

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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.