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Finding the Fourth Proportional to 10,782, 14,877.54 and 6,066.18

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Solution

The fourth proportional to 10,782, 14,877.54 and 6,066.18 is: 8,370.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,782 : 14,877.54 = 6,066.18 : x
  2. Step 2: Convert to fraction form
    10,782/14,877.54 = 6,066.18/x
  3. Step 3: Cross multiply
    10,782x = 14,877.54 × 6,066.18
  4. Step 4: Simplify right side
    10,782x = 90,249,835.60
  5. Step 5: Solve for x
    x = 90,249,835.60/10,782
  6. Step 6: Final answer
    x = 8,370.42

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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.