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Finding the Fourth Proportional to 56,426.40, 84,643.08 and 14,873.40

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Solution

The fourth proportional to 56,426.40, 84,643.08 and 14,873.40 is: 22,311.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,426.40 : 84,643.08 = 14,873.40 : x
  2. Step 2: Convert to fraction form
    56,426.40/84,643.08 = 14,873.40/x
  3. Step 3: Cross multiply
    56,426.40x = 84,643.08 × 14,873.40
  4. Step 4: Simplify right side
    56,426.40x = 1,258,930,386.07
  5. Step 5: Solve for x
    x = 1,258,930,386.07/56,426.40
  6. Step 6: Final answer
    x = 22,311.02

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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.