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Finding the Fourth Proportional to 22,510.89, 31,065.03 and 12,574.89

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Solution

The fourth proportional to 22,510.89, 31,065.03 and 12,574.89 is: 17,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,510.89 : 31,065.03 = 12,574.89 : x
  2. Step 2: Convert to fraction form
    22,510.89/31,065.03 = 12,574.89/x
  3. Step 3: Cross multiply
    22,510.89x = 31,065.03 × 12,574.89
  4. Step 4: Simplify right side
    22,510.89x = 390,639,335.10
  5. Step 5: Solve for x
    x = 390,639,335.10/22,510.89
  6. Step 6: Final answer
    x = 17,353.35

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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.