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Finding the Fourth Proportional to 28,594.76, 39,461.00 and 15,848.15

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Solution

The fourth proportional to 28,594.76, 39,461.00 and 15,848.15 is: 21,870.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,594.76 : 39,461.00 = 15,848.15 : x
  2. Step 2: Convert to fraction form
    28,594.76/39,461.00 = 15,848.15/x
  3. Step 3: Cross multiply
    28,594.76x = 39,461.00 × 15,848.15
  4. Step 4: Simplify right side
    28,594.76x = 625,383,570.60
  5. Step 5: Solve for x
    x = 625,383,570.60/28,594.76
  6. Step 6: Final answer
    x = 21,870.57

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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.