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Finding the Fourth Proportional to 19,492.50, 26,899.65 and 10,660.50

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Solution

The fourth proportional to 19,492.50, 26,899.65 and 10,660.50 is: 14,711.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,492.50 : 26,899.65 = 10,660.50 : x
  2. Step 2: Convert to fraction form
    19,492.50/26,899.65 = 10,660.50/x
  3. Step 3: Cross multiply
    19,492.50x = 26,899.65 × 10,660.50
  4. Step 4: Simplify right side
    19,492.50x = 286,763,718.83
  5. Step 5: Solve for x
    x = 286,763,718.83/19,492.50
  6. Step 6: Final answer
    x = 14,711.49

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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.