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Finding the Fourth Proportional to 14,073.59, 19,421.80 and 7,700.74

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Solution

The fourth proportional to 14,073.59, 19,421.80 and 7,700.74 is: 10,627.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,073.59 : 19,421.80 = 7,700.74 : x
  2. Step 2: Convert to fraction form
    14,073.59/19,421.80 = 7,700.74/x
  3. Step 3: Cross multiply
    14,073.59x = 19,421.80 × 7,700.74
  4. Step 4: Simplify right side
    14,073.59x = 149,562,284.43
  5. Step 5: Solve for x
    x = 149,562,284.43/14,073.59
  6. Step 6: Final answer
    x = 10,627.16

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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.