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Finding the Fourth Proportional to 15,812.76, 23,669.93 and 9,957.07

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Solution

The fourth proportional to 15,812.76, 23,669.93 and 9,957.07 is: 14,904.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,812.76 : 23,669.93 = 9,957.07 : x
  2. Step 2: Convert to fraction form
    15,812.76/23,669.93 = 9,957.07/x
  3. Step 3: Cross multiply
    15,812.76x = 23,669.93 × 9,957.07
  4. Step 4: Simplify right side
    15,812.76x = 235,683,149.91
  5. Step 5: Solve for x
    x = 235,683,149.91/15,812.76
  6. Step 6: Final answer
    x = 14,904.62

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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.