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Finding the Fourth Proportional to 15,152.01, 20,916.23 and 10,186.89

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Solution

The fourth proportional to 15,152.01, 20,916.23 and 10,186.89 is: 14,062.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,152.01 : 20,916.23 = 10,186.89 : x
  2. Step 2: Convert to fraction form
    15,152.01/20,916.23 = 10,186.89/x
  3. Step 3: Cross multiply
    15,152.01x = 20,916.23 × 10,186.89
  4. Step 4: Simplify right side
    15,152.01x = 213,071,283.29
  5. Step 5: Solve for x
    x = 213,071,283.29/15,152.01
  6. Step 6: Final answer
    x = 14,062.25

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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.