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Finding the Fourth Proportional to 28,875.34, 39,866.34 and 23,582.80

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Solution

The fourth proportional to 28,875.34, 39,866.34 and 23,582.80 is: 32,559.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.34 : 39,866.34 = 23,582.80 : x
  2. Step 2: Convert to fraction form
    28,875.34/39,866.34 = 23,582.80/x
  3. Step 3: Cross multiply
    28,875.34x = 39,866.34 × 23,582.80
  4. Step 4: Simplify right side
    28,875.34x = 940,159,922.95
  5. Step 5: Solve for x
    x = 940,159,922.95/28,875.34
  6. Step 6: Final answer
    x = 32,559.27

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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.