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Finding the Fourth Proportional to 10,622.71, 15,931.90 and 10,095.80

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Solution

The fourth proportional to 10,622.71, 15,931.90 and 10,095.80 is: 15,141.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,622.71 : 15,931.90 = 10,095.80 : x
  2. Step 2: Convert to fraction form
    10,622.71/15,931.90 = 10,095.80/x
  3. Step 3: Cross multiply
    10,622.71x = 15,931.90 × 10,095.80
  4. Step 4: Simplify right side
    10,622.71x = 160,845,225.54
  5. Step 5: Solve for x
    x = 160,845,225.54/10,622.71
  6. Step 6: Final answer
    x = 15,141.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.