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Finding the Fourth Proportional to 19,038.65, 28,559.84 and 6,557.00

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Solution

The fourth proportional to 19,038.65, 28,559.84 and 6,557.00 is: 9,836.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,038.65 : 28,559.84 = 6,557.00 : x
  2. Step 2: Convert to fraction form
    19,038.65/28,559.84 = 6,557.00/x
  3. Step 3: Cross multiply
    19,038.65x = 28,559.84 × 6,557.00
  4. Step 4: Simplify right side
    19,038.65x = 187,266,695.30
  5. Step 5: Solve for x
    x = 187,266,695.30/19,038.65
  6. Step 6: Final answer
    x = 9,836.14

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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.