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Finding the Fourth Proportional to 14,320.95, 19,762.43 and 8,353.01

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Solution

The fourth proportional to 14,320.95, 19,762.43 and 8,353.01 is: 11,526.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,320.95 : 19,762.43 = 8,353.01 : x
  2. Step 2: Convert to fraction form
    14,320.95/19,762.43 = 8,353.01/x
  3. Step 3: Cross multiply
    14,320.95x = 19,762.43 × 8,353.01
  4. Step 4: Simplify right side
    14,320.95x = 165,075,634.84
  5. Step 5: Solve for x
    x = 165,075,634.84/14,320.95
  6. Step 6: Final answer
    x = 11,526.86

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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.