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Finding the Fourth Proportional to 47,684.99, 65,798.55 and 28,560.28

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Solution

The fourth proportional to 47,684.99, 65,798.55 and 28,560.28 is: 39,409.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,684.99 : 65,798.55 = 28,560.28 : x
  2. Step 2: Convert to fraction form
    47,684.99/65,798.55 = 28,560.28/x
  3. Step 3: Cross multiply
    47,684.99x = 65,798.55 × 28,560.28
  4. Step 4: Simplify right side
    47,684.99x = 1,879,225,011.59
  5. Step 5: Solve for x
    x = 1,879,225,011.59/47,684.99
  6. Step 6: Final answer
    x = 39,409.15

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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.