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Finding the Fourth Proportional to 13,332.90, 19,980.17 and 9,795.13

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Solution

The fourth proportional to 13,332.90, 19,980.17 and 9,795.13 is: 14,678.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.90 : 19,980.17 = 9,795.13 : x
  2. Step 2: Convert to fraction form
    13,332.90/19,980.17 = 9,795.13/x
  3. Step 3: Cross multiply
    13,332.90x = 19,980.17 × 9,795.13
  4. Step 4: Simplify right side
    13,332.90x = 195,708,300.38
  5. Step 5: Solve for x
    x = 195,708,300.38/13,332.90
  6. Step 6: Final answer
    x = 14,678.60

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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.