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Finding the Fourth Proportional to 14,069.63, 19,416.08 and 7,782.95

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Solution

The fourth proportional to 14,069.63, 19,416.08 and 7,782.95 is: 10,740.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,069.63 : 19,416.08 = 7,782.95 : x
  2. Step 2: Convert to fraction form
    14,069.63/19,416.08 = 7,782.95/x
  3. Step 3: Cross multiply
    14,069.63x = 19,416.08 × 7,782.95
  4. Step 4: Simplify right side
    14,069.63x = 151,114,302.21
  5. Step 5: Solve for x
    x = 151,114,302.21/14,069.63
  6. Step 6: Final answer
    x = 10,740.46

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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.