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Finding the Fourth Proportional to 14,695.76, 21,903.52 and 13,865.52

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Solution

The fourth proportional to 14,695.76, 21,903.52 and 13,865.52 is: 20,666.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,695.76 : 21,903.52 = 13,865.52 : x
  2. Step 2: Convert to fraction form
    14,695.76/21,903.52 = 13,865.52/x
  3. Step 3: Cross multiply
    14,695.76x = 21,903.52 × 13,865.52
  4. Step 4: Simplify right side
    14,695.76x = 303,703,694.63
  5. Step 5: Solve for x
    x = 303,703,694.63/14,695.76
  6. Step 6: Final answer
    x = 20,666.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.