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Finding the Fourth Proportional to 13,210.04, 19,813.19 and 4,888.66

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Solution

The fourth proportional to 13,210.04, 19,813.19 and 4,888.66 is: 7,332.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.04 : 19,813.19 = 4,888.66 : x
  2. Step 2: Convert to fraction form
    13,210.04/19,813.19 = 4,888.66/x
  3. Step 3: Cross multiply
    13,210.04x = 19,813.19 × 4,888.66
  4. Step 4: Simplify right side
    13,210.04x = 96,859,949.43
  5. Step 5: Solve for x
    x = 96,859,949.43/13,210.04
  6. Step 6: Final answer
    x = 7,332.30

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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.