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Finding the Fourth Proportional to 10,573.74, 15,870.33 and 9,938.70

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Solution

The fourth proportional to 10,573.74, 15,870.33 and 9,938.70 is: 14,917.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,573.74 : 15,870.33 = 9,938.70 : x
  2. Step 2: Convert to fraction form
    10,573.74/15,870.33 = 9,938.70/x
  3. Step 3: Cross multiply
    10,573.74x = 15,870.33 × 9,938.70
  4. Step 4: Simplify right side
    10,573.74x = 157,730,448.77
  5. Step 5: Solve for x
    x = 157,730,448.77/10,573.74
  6. Step 6: Final answer
    x = 14,917.19

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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.