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Finding the Fourth Proportional to 14,859.98, 20,502.69 and 9,192.01

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Solution

The fourth proportional to 14,859.98, 20,502.69 and 9,192.01 is: 12,682.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,859.98 : 20,502.69 = 9,192.01 : x
  2. Step 2: Convert to fraction form
    14,859.98/20,502.69 = 9,192.01/x
  3. Step 3: Cross multiply
    14,859.98x = 20,502.69 × 9,192.01
  4. Step 4: Simplify right side
    14,859.98x = 188,460,931.51
  5. Step 5: Solve for x
    x = 188,460,931.51/14,859.98
  6. Step 6: Final answer
    x = 12,682.45

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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.