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Finding the Fourth Proportional to 25,875.51, 38,813.18 and 7,155.50

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Solution

The fourth proportional to 25,875.51, 38,813.18 and 7,155.50 is: 10,733.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,875.51 : 38,813.18 = 7,155.50 : x
  2. Step 2: Convert to fraction form
    25,875.51/38,813.18 = 7,155.50/x
  3. Step 3: Cross multiply
    25,875.51x = 38,813.18 × 7,155.50
  4. Step 4: Simplify right side
    25,875.51x = 277,727,479.65
  5. Step 5: Solve for x
    x = 277,727,479.65/25,875.51
  6. Step 6: Final answer
    x = 10,733.22

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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.