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Finding the Fourth Proportional to 14,878.71, 20,526.48 and 9,845.37

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Solution

The fourth proportional to 14,878.71, 20,526.48 and 9,845.37 is: 13,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,878.71 : 20,526.48 = 9,845.37 : x
  2. Step 2: Convert to fraction form
    14,878.71/20,526.48 = 9,845.37/x
  3. Step 3: Cross multiply
    14,878.71x = 20,526.48 × 9,845.37
  4. Step 4: Simplify right side
    14,878.71x = 202,090,790.40
  5. Step 5: Solve for x
    x = 202,090,790.40/14,878.71
  6. Step 6: Final answer
    x = 13,582.55

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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.