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Finding the Fourth Proportional to 15,562.13, 21,475.73 and 9,973.13

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Solution

The fourth proportional to 15,562.13, 21,475.73 and 9,973.13 is: 13,762.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,562.13 : 21,475.73 = 9,973.13 : x
  2. Step 2: Convert to fraction form
    15,562.13/21,475.73 = 9,973.13/x
  3. Step 3: Cross multiply
    15,562.13x = 21,475.73 × 9,973.13
  4. Step 4: Simplify right side
    15,562.13x = 214,180,164.69
  5. Step 5: Solve for x
    x = 214,180,164.69/15,562.13
  6. Step 6: Final answer
    x = 13,762.91

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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.