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Finding the Fourth Proportional to 14,898.76, 20,543.47 and 10,858.46

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Solution

The fourth proportional to 14,898.76, 20,543.47 and 10,858.46 is: 14,972.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,898.76 : 20,543.47 = 10,858.46 : x
  2. Step 2: Convert to fraction form
    14,898.76/20,543.47 = 10,858.46/x
  3. Step 3: Cross multiply
    14,898.76x = 20,543.47 × 10,858.46
  4. Step 4: Simplify right side
    14,898.76x = 223,070,447.26
  5. Step 5: Solve for x
    x = 223,070,447.26/14,898.76
  6. Step 6: Final answer
    x = 14,972.42

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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.