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Finding the Fourth Proportional to 16,461.16, 22,715.94 and 9,386.92

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Solution

The fourth proportional to 16,461.16, 22,715.94 and 9,386.92 is: 12,953.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,461.16 : 22,715.94 = 9,386.92 : x
  2. Step 2: Convert to fraction form
    16,461.16/22,715.94 = 9,386.92/x
  3. Step 3: Cross multiply
    16,461.16x = 22,715.94 × 9,386.92
  4. Step 4: Simplify right side
    16,461.16x = 213,232,711.50
  5. Step 5: Solve for x
    x = 213,232,711.50/16,461.16
  6. Step 6: Final answer
    x = 12,953.69

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Double scale
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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.