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Finding the Fourth Proportional to 19,246.90, 28,870.35 and 14,062.90

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Solution

The fourth proportional to 19,246.90, 28,870.35 and 14,062.90 is: 21,094.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,246.90 : 28,870.35 = 14,062.90 : x
  2. Step 2: Convert to fraction form
    19,246.90/28,870.35 = 14,062.90/x
  3. Step 3: Cross multiply
    19,246.90x = 28,870.35 × 14,062.90
  4. Step 4: Simplify right side
    19,246.90x = 406,000,845.02
  5. Step 5: Solve for x
    x = 406,000,845.02/19,246.90
  6. Step 6: Final answer
    x = 21,094.35

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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.