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Finding the Fourth Proportional to 46,786.80, 64,565 and 25,565.60

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Solution

The fourth proportional to 46,786.80, 64,565 and 25,565.60 is: 35,280.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,786.80 : 64,565 = 25,565.60 : x
  2. Step 2: Convert to fraction form
    46,786.80/64,565 = 25,565.60/x
  3. Step 3: Cross multiply
    46,786.80x = 64,565 × 25,565.60
  4. Step 4: Simplify right side
    46,786.80x = 1,650,642,964
  5. Step 5: Solve for x
    x = 1,650,642,964/46,786.80
  6. Step 6: Final answer
    x = 35,280.10

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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.