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Finding the Fourth Proportional to 14,098.54, 19,455.98 and 7,810.90

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Solution

The fourth proportional to 14,098.54, 19,455.98 and 7,810.90 is: 10,779.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,098.54 : 19,455.98 = 7,810.90 : x
  2. Step 2: Convert to fraction form
    14,098.54/19,455.98 = 7,810.90/x
  3. Step 3: Cross multiply
    14,098.54x = 19,455.98 × 7,810.90
  4. Step 4: Simplify right side
    14,098.54x = 151,968,714.18
  5. Step 5: Solve for x
    x = 151,968,714.18/14,098.54
  6. Step 6: Final answer
    x = 10,779.04

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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.