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Finding the Fourth Proportional to 27,571,417.75, 37,978,485.95 and 21,033,697.01

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Solution

The fourth proportional to 27,571,417.75, 37,978,485.95 and 21,033,697.01 is: 28,973,046.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,571,417.75 : 37,978,485.95 = 21,033,697.01 : x
  2. Step 2: Convert to fraction form
    27,571,417.75/37,978,485.95 = 21,033,697.01/x
  3. Step 3: Cross multiply
    27,571,417.75x = 37,978,485.95 × 21,033,697.01
  4. Step 4: Simplify right side
    27,571,417.75x = 798,827,966,370,842.12
  5. Step 5: Solve for x
    x = 798,827,966,370,842.12/27,571,417.75
  6. Step 6: Final answer
    x = 28,973,046.42

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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.