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Finding the Fourth Proportional to 18,465.71, 25,482.90 and 10,508.67

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Solution

The fourth proportional to 18,465.71, 25,482.90 and 10,508.67 is: 14,502.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,465.71 : 25,482.90 = 10,508.67 : x
  2. Step 2: Convert to fraction form
    18,465.71/25,482.90 = 10,508.67/x
  3. Step 3: Cross multiply
    18,465.71x = 25,482.90 × 10,508.67
  4. Step 4: Simplify right side
    18,465.71x = 267,791,386.74
  5. Step 5: Solve for x
    x = 267,791,386.74/18,465.71
  6. Step 6: Final answer
    x = 14,502.09

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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.